Chapter 76

The castle echoed with controlled chaos as McGonagall ran the alliance through practical exercises. Students moved between assigned zones, testing communication systems and evacuation routes under the guise of "advanced Defense Against the Dark Arts training" that wouldn't alarm the general student population.

Mulciber navigated the third-floor corridor alone, carrying a stack of dummy medical supplies to the Astronomy Tower zone as part of the drill. His reformed status was still fragile, a secret kept from most of Slytherin house, where his former associates assumed he was simply laying low after the vessel incident.

"Well, well. If it isn't the prodigal Death Eater."

Mulciber froze. Evan Rosier emerged from an alcove, wand drawn but held casually at his side. Behind him, Wilkes and two other sixth-year Slytherins blocked the corridor, Travers and Jugson.

"Lost your way to the dungeon?" Mulciber kept his voice flat, face impassive, though his pulse thundered in his ears. The supplies in his arms suddenly felt like incriminating evidence.

Wilkes circled to Mulciber's left, cutting off escape routes. "We've been watching you. Saw you talking with that Mudblood Evans yesterday. Looking rather friendly for someone who used to understand blood purity."

"I'm gathering intelligence, " Mulciber said, slipping back into old patterns with disturbing ease. "Know your enemy, isn't that what they teach us?"

Rosier's cold smile didn't reach his eyes. "Funny thing about intelligence, it works both ways. We've noticed Snape's little network forming. Quite the collection of blood traitors and filth he's assembled." He stepped closer, examining the supplies in Mulciber's arms. "And now here you are, running errands like a house-elf."

"What do you want, Rosier?" Mulciber asked, careful to inject just the right amount of boredom and irritation into his voice.

"Proof." Rosier's tone hardened. "Proof of where you stand."

Travers snickered. "If you're playing both sides, that's a dangerous game."

"I serve the Dark Lord, " Mulciber said automatically, hating how natural the words felt on his tongue.

"Words are wind, " Wilkes replied. "Actions matter."

Rosier leaned against the wall, studying Mulciber with predatory intensity. "That Mudblood, MacDonald, has been organizing medical supplies to the defensive positions."

Mulciber's stomach dropped. "And?"

"Hurt her." Rosier's voice was almost gentle, which made it worse. "Nothing permanent. But enough to prove where your loyalties lie."

"You want me to attack a student in Hogwarts? During daylight? With professors around?" Mulciber scoffed, buying time while his mind raced. "That's not loyalty, that's stupidity."

Jugson stepped forward, eyes narrowed. "Use something painful but not permanently damaging. Stinging hexes, maybe a tripping jinx down the stairs. Make it look accidental but hurt enough that she knows it wasn't."

"Consider it a test, " Rosier said. "We're watching. And we'll know if you warn her."

"The Dark Lord rewards loyalty, " Wilkes added. "But betrayal... well, you've seen what happens to those who choose the wrong side."

Mulciber's face remained impassive while his thoughts spiraled. This was the moment he'd feared, forced to choose between his cover and his newfound conscience. Mary MacDonald was part of the alliance, one of the few who'd trusted his change was genuine. And now they wanted him to hurt her, to mark himself with cruelty all over again.

"Fine, " he said, letting annoyance coat his words. "I'll handle it tonight. After dinner, when she's heading back to Gryffindor Tower."

Rosier's eyes narrowed. "Why wait?"

"Because I'm not an idiot, " Mulciber snapped. "She's with friends now. Tonight she'll be alone. Unless you want multiple witnesses?"

A long, tense moment passed before Rosier nodded. "Tonight. And we'll be watching, so make it convincing."

"After you've proven yourself, " Wilkes added, "we'll tell you what's really happening in two days. The Dark Lord has plans that Snape can't possibly counter."

They let him pass, but Mulciber felt their eyes boring into his back as he walked away, medical supplies clutched to his chest like a shield. His mind raced through impossible options. Warn Mary and expose himself as a traitor. Attack her and become the monster he was trying to leave behind. Create a convincing fake assault that would satisfy Rosier without causing real harm.

Each choice came with devastating consequences. If he refused, they'd know immediately where his loyalties lay, and their entire defensive strategy would be compromised. If he attacked her, he'd destroy the fragile trust he'd built with the alliance. If he tried to fake it, and Rosier saw through the deception...

He ducked into an empty classroom, set down the supplies, and pressed his forehead against the cool stone wall. Three months ago, he would have done it without hesitation. Would have enjoyed it, even. The ease with which he could still imagine it disgusted him.

What would Snape do? Probably something coldly pragmatic that protected the mission while minimizing harm. But Mulciber wasn't Snape. He didn't have the ice in his veins, the ability to calculate with perfect detachment.

He had eight hours to decide which version of himself would win, the Death Eater he'd been, or the person he was trying to become.

"Merlin help me, " he whispered to the empty corridor. But Merlin didn't answer, and the clock kept ticking toward nightfall.

Mulciber burst through the door of the Room of Requirement without bothering to knock, startling Severus, Lily, and Regulus who'd been reviewing potion formulations. His face was pale, jaw clenched tight, and his hands shook slightly as he sealed the door behind him with more force than necessary.

"We have a problem, " he said without preamble.

Severus was on his feet instantly, wand drawn. "What kind of problem?"

"The kind where Rosier and his Death Eater fan club just cornered me and demanded I prove my loyalty by cursing Mary Macdonald tonight."

The room went deadly silent. Lily's quill froze mid-stroke. Regulus's eyes widened with alarm.

"Explain, " Severus commanded, his voice cold and controlled. "Everything. Don't leave out details."

Mulciber leaned against the door, running a hand through his hair. "I was taking supplies to the Astronomy Tower for the drill. Rosier, Wilkes, Travers, and Jugson surrounded me in the third-floor corridor. They've been watching us, they know about the network, or at least suspect. They ordered me to attack Mary tonight to prove where my loyalty lies."

Lily stood slowly. "Attack her how?"

"Nothing permanent, " Mulciber said bitterly. "Just painful enough that she knows it wasn't an accident. Stinging hexes, maybe a trip down the stairs, their words, not mine."

Severus's expression remained unchanged, but his eyes hardened to obsidian. "And if you refuse?"

"Then I'm exposed as a traitor, and they'll know exactly where I stand. Our entire defensive strategy will be compromised."

"And if you warn Mary?" Regulus asked quietly.

"They said they'd be watching. If I warn her, same result."

Severus began pacing, his movements economical and precise. "They're testing their suspicions. If you refuse, they confirm you've switched sides. If you go through with it, they strengthen their hold over you."

"I told them I'd do it tonight after dinner, " Mulciber said, disgust evident in his voice. "Bought myself a few hours to figure something out."

"What did they say about two days from now?" Severus stopped pacing abruptly.

Mulciber blinked. "How did you, "

"What. Did. They. Say."

"That after I'd proven myself, they'd tell me what's really happening. That the Dark Lord has plans you can't possibly counter."

Severus and Lily exchanged a significant look.

"They know about the attack, " Lily murmured. "Or at least that something's coming."

"And they're ensuring potential threats are neutralized beforehand, " Regulus added.

Mulciber pushed away from the door, his frustration evident. "That doesn't solve my immediate problem. What do I do about Mary?"

Severus resumed pacing, his mind visibly calculating possibilities. "You have three options. One, you refuse and expose yourself, compromising our entire defense. Two, you go through with it, maintaining your cover at the cost of Mary's safety and your conscience. Three, we create a convincing deception that satisfies Rosier without harming Mary."

"I'm not attacking her, " Mulciber said firmly. "I'm done being that person."

"Then we deceive them, " Severus decided. "We'll need to speak with Mary, get her cooperation. Stage an incident convincing enough to fool Rosier but controlled enough to prevent actual harm."

"And if she refuses?" Lily asked quietly.

Severus's expression turned grim. "Then we lose Mulciber as an asset, and potentially our entire defensive plan."

The brutality of his assessment hung in the air. Lily stared at him, green eyes flashing.

"This is Mary we're talking about, my friend. We're not sacrificing her safety for tactical advantage."

"We're talking about everyone's safety, " Severus countered. "If our defense fails because Rosier exposes Mulciber, how many students could be hurt or killed in the attack? Sometimes protecting the many requires difficult choices about the few."

Regulus cleared his throat. "What if we used a modified Confundus Charm? Something that would make Mary appear injured without causing actual pain?"

"Rosier would see through that, " Severus replied. "It needs to be real enough to convince observers who are specifically looking for deception."

"We could prepare Mary ahead of time, " Mulciber suggested hesitantly. "Warn her what's coming, have her take a pain suppressor potion before I cast something flashy but controlled." This is on me. I'll talk to her, explain the situation, and accept whatever decision she makes."

"No, " Lily said suddenly, drawing everyone's attention. "I'll talk to her. Mary and I are close, she'll receive this better from me than from you, no offense."

"None taken, " Mulciber said quietly. "What will you tell her?"

Lily's expression became calculating in a way that reminded them she was as much Severus's partner in strategy as in potions. "The truth. That Rosier is suspicious, that your cover is critical to our defense, and that we need to stage something convincing tonight. I'll also tell her she has complete authority to refuse, and we'll find another solution if she does."

"What other solution?" Regulus asked.

"I'm working on that part, " Lily admitted. "But Mary deserves the choice."

"And if she chooses not to participate?" Severus pressed. "The strategic reality doesn't change because we find it distasteful."

Lily's eyes flashed dangerously. "There's a difference between making hard choices and forgetting why we're making them in the first place. If we sacrifice our humanity to win this war, what exactly are we winning?"

The tension between them crackled like static electricity. Mulciber and Regulus exchanged uncomfortable glances.

"Perhaps, " Regulus interjected carefully, "we could prepare multiple options. Approach Mary as Lily suggests, but also develop contingency plans that don't require her cooperation."

Severus broke eye contact with Lily first, though his expression remained unreadable. "What do you suggest?"

"Polyjuice Potion. Someone else takes Mary's form for the confrontation. She stays safely hidden while her double takes a controlled hit."

"We don't have Polyjuice prepared, " Severus pointed out. "It takes weeks to brew properly."

"But we have Metamorphmagus Mimicry Potion, " Lily said slowly, eyes widening. "It only lasts thirty minutes, but that would be enough."

Mulciber frowned. "Who would take her place?"

"I would, " Lily stated firmly. "I know her mannerisms best."

"Absolutely not, " Severus snapped, all pretense of detachment vanishing. "If anything went wrong, "

"This is my choice, " Lily interrupted. "I won't ask Mary to do something I wouldn't do myself. If she refuses, and she has every right to, then I'll take her place."

Severus's jaw clenched, the muscle ticking visibly. "And if I refuse to let you?"

Lily's eyebrow arched. "Let me? I wasn't aware I needed your permission."

Regulus cleared his throat uncomfortably. "Perhaps we should all take a moment to, "

"No, " Lily cut him off, her gaze still locked with Severus's. "This needs to be said. I understand making difficult choices. I understand sacrifice. But I will not become the kind of person who sees friends as disposable assets in a larger game. That's what they do."

"I'm not suggesting, " Severus began.

"Yes, you are, " Lily insisted. "You're calculating exactly what Mary's worth against our strategic position. I can see it in your eyes. That's the kind of thinking that got us here in the first place, people becoming means to an end."

"This isn't about one person's comfort versus another's, " Severus argued, his voice hardening. "This is about survival. About preventing a massacre two days from now."

"And that's exactly why we need to remember what we're fighting for, " Lily countered. "If we start treating people as pawns, we become what we're fighting against."

Regulus stepped between them. "Both of you are right, in different ways. We need Mary's cooperation for this to work smoothly, but we also need contingency plans if she refuses. Let Lily speak with her, explain the situation. Meanwhile, we'll prepare alternatives that minimize harm while maintaining the necessary deception."

The tension in the room slowly diffused. Severus nodded curtly. Lily's shoulders relaxed slightly.

"I'll find her now, " Lily said, gathering her notes. "She should be finishing Charms."

"And if she refuses?" Mulciber asked quietly.

"Then we adapt, " Lily answered, her hand on the door. "But we don't compromise who we are. That's the line that separates us from them."

"Sometimes the line isn't so clear, " Severus murmured.

They stood in heavy silence, each processing the weight of what they were planning.

"Three days until the real attack, " Regulus said quietly. "And we're already tearing ourselves apart from the inside."

"That's what they want, " Severus replied, his dark eyes hard. "Internal conflict, moral paralysis, allies turning on each other. If we let this break us, Rosier wins even before the Death Eaters arrive."

Lily nodded slowly, though her heart was heavy. "Then we don't break. We bend, we compromise, we make impossible choices, but we don't break." She left to find Mary, the burden of what she would ask weighing heavily on her shoulders.

Mary Macdonald looked up from her Charms essay as Lily slid into the seat across from her, immediately sensing something wrong. Lily's expression was carefully neutral, but Mary had known her long enough to read the tension in her shoulders, the tightness around her eyes.

"What happened?" Mary asked, setting down her quill.

"We need to talk, " Lily said quietly. "Privately. Can you come with me?"

Mary followed without question, trusting Lily implicitly. They wound through rows of ancient tomes until they reached a secluded alcove far from curious ears. Lily cast a quick Muffliato charm, one of Severus's creations that Mary had grudgingly admitted was brilliant.

"You're scaring me, Lils, " Mary said, trying for lightness that didn't quite land.

Lily took a breath, then delivered the situation with clinical precision: Rosier's confrontation with Mulciber, the demand for proof of loyalty, the staged attack planned for tonight, and the impossible position everyone was now in.

Mary listened without interrupting, her expression shifting from confusion to disbelief to something harder.

"So, " Mary said when Lily finished, "they want Mulciber to hurt me to prove he's still one of them."

"Yes."

"And if he doesn't, our entire defense strategy for the attack is compromised."

"Yes."

Mary leaned against the stone wall, arms crossed. "And you're telling me this because...?"

"Because I won't make this decision for you, " Lily said firmly. "If you refuse, which you have every right to do, we'll find another way. I've already offered to take Metamorphmagus Mimicry Potion and stand in for you."

"Of course you have, " Mary said with a brittle laugh. "Saint Lily, always ready to sacrifice herself."

"That's not fair."

"None of this is fair." Mary pushed off from the wall and began pacing the small alcove. "So I get to choose between being hexed or potentially endangering everyone?"

"It wouldn't be a severe hex, " Lily hastened to add. "Something controlled, something that looks worse than it is. And you'd take pain suppression potion beforehand."

"Oh, well that makes it all better then, " Mary said sarcastically. "Just a little torture, nothing to worry about."

Lily flinched. "I'm sorry. I hate even asking this of you."

Mary stopped pacing abruptly. "Did Severus put you up to this?"

"No, " Lily said, then hesitated. "Well, not exactly. He wanted to handle it differently, his first concern was maintaining strategic advantage."

"Meaning he'd have just told me it was happening rather than asking?"

"No, " Lily insisted. "But he was... calculating. Looking at the bigger picture."

"The bigger picture where I'm collateral damage?"

"Nobody is collateral damage, " Lily said fiercely. "That's why I'm here, asking instead of telling. You have a real choice, Mary."

Mary laughed hollowly. "Do I? If I say no and someone dies in the attack because our defense was compromised, how is that a choice?" She ran a hand through her dark curls, tugging slightly in frustration. "This is why I hate Slytherins."

"Mulciber refused to do it, you know, " Lily said quietly. "That's why we're even having this conversation. He could have just attacked you tonight and maintained his cover perfectly. Instead, he came to us."

That seemed to stop Mary short. "He did?"

"Yes. He was quite adamant about not hurting you."

Mary looked out the small window to the grounds below, where students wandered without any idea of what was coming. "I've never been the brave one, " she admitted softly. "That's you, and Potter, and Black. I'm just... there. Watching others fight."

"That's not true, "

"It is, " Mary cut her off. "Let's not pretend. I've been useless in all of this, no special skills, no strategic value. The only time I matter is when someone needs to hurt me to prove a point."

Lily crossed the space between them and took Mary's hands firmly. "Listen to me. You are not useless. You're organizing the medical response for the entire defense. You're the one who figured out how to distribute supplies without drawing attention. You've been running drills with the fourth-years to evacuate the younger students."

"Small things, " Mary murmured.

"Essential things, " Lily corrected. "And what I'm asking now isn't small, and I hate myself for asking it, but... we need you, Mary. Not just as a victim, but as an ally making a hard choice."

Mary turned back to the window, watching a group of third-years laughing by the lake. "How bad would it need to be? The hex, I mean."

"Visible effects. Pain, if Rosier is watching closely enough to see your reaction. But controlled, and nothing permanent."

"And what if Mulciber gets carried away? What if the old him takes over in the moment?"

Lily's expression was solemn. "I'll be nearby with James. If anything goes wrong, we'll intervene immediately."

Mary nodded slowly, still gazing out the window. "I used to think I knew where the lines were, " she said softly. "Gryffindors good, Slytherins bad. Light magic, dark magic. Brave choices, cowardly ones." She turned to face Lily. "Now we're staging attacks on our own allies and making complicated moral calculations about whether the ends justify the means."

"I know, " Lily whispered. "Sometimes I don't recognize what we've become."

"But we don't have the luxury of staying the same, do we? Not with what's coming." Mary squared her shoulders. "I'll do it."

Mary stood, pacing the small alcove. "I'm Muggleborn. Do you know what that means in this war, Lily?"

"Of course I, "

"No, let me finish." Mary's voice was quiet but intense. "Every day I wake up knowing that if Voldemort wins, I die. Or worse, I get sent to Azkaban for the crime of existing, or I'm used as slave labor, or I'm tortured for entertainment. Every Muggleborn student in this school faces that reality."

Lily blinked, clearly surprised by the sudden decision. "Are you sure?"

"No, " Mary admitted with a wry smile. "But I'm sure about what happens if I don't. And I can't live with that."

"We could still try the Mimicry Potion, " Lily offered. "You wouldn't have to, "

"And risk you instead? No. Besides, something could go wrong with the potion, or Rosier might somehow figure out it's not really me." Mary's expression hardened with determination. "If we're doing this, we do it properly. No half measures."

"Mary..."

"I want conditions, though, " Mary continued, her practical side emerging. "First, I want that pain suppression potion, the strongest one you've got. Second, I want Mulciber to tell me exactly what he's going to cast beforehand so I can prepare. Third, I want you and James close enough to intervene, but not so close that Rosier spots you."

Lily nodded, noting the conditions mentally.

"And fourth, " Mary added, her voice dropping, "if this works, if it helps us survive the attack, then afterward, I want in. The real inner circle, not just the medical support. I'm tired of being on the periphery."

"Done, " Lily agreed without hesitation. "You've more than earned it."

Mary exhaled slowly. "I have six hours to prepare myself to be hexed by someone I've spent years hating." She laughed shakily. "Funny how life works out, isn't it?"

"I'm so sorry, Mary, " Lily said, her eyes bright with unshed tears. "I wish, "

"Don't, " Mary interrupted gently. "We're past wishing. Now we just do what needs to be done." She gathered her books, her movements precise and deliberate. "I need some time alone before... tonight. I'll meet you at the Room of Requirement in an hour to go over the details."

Lily watched her friend walk away, straight-backed and resolute, disappearing into the library stacks. Through her bond with Severus, she felt his distant awareness, he knew the conversation was over, was waiting to hear Mary's decision.

She said yes, Lily sent through the connection. She felt his satisfaction mixed with regret, his tactical relief overshadowed by moral discomfort.

I hate this, Lily added.

I know, Severus responded. So do I. But we do it anyway.

Lily wiped her tears, straightened her robes, and prepared to return to the Room of Requirement. In six hours, they'd stage an attack on their own ally. In three days, they'd face real attacks from real enemies. And somehow, they had to survive both while keeping their souls intact.

She wasn't sure that was possible anymore. But she'd try anyway. They all would.

 Mary walked the familiar route from dinner to the library with forced casualness, her heart hammering against her ribs despite the pain-dulling potion warming her bloodstream. The corridor was quiet, most students were still at dinner or in common rooms, but she could sense eyes watching from alcoves and doorways.

Witnesses. As planned.

The potion made her limbs feel slightly distant, as if she were piloting her body from somewhere removed. Regulus had explained this would help, physical reactions would remain authentic while emotional response stayed manageable.

"Well, well. Out for an evening stroll, Mudblood?"

Mary turned to see Mulciber emerge from behind a statue, wand drawn. Then she saw his eyes. Cold on the surface, but underneath, apology, determination, and soul-deep disgust at what he was about to do.

She didn't have to fake the slight tremble in her voice. "What do you want, Mulciber?"

"To remind you of your place." He flicked his wand almost lazily. "Vespertilio Mucus!"

The Bat-Bogey Hex struck her squarely in the face. Mary cried out as the unpleasant sensation overwhelmed her, painful and humiliating exactly as they had planned. Dark, bat-shaped mucus erupted from her nostrils, flapping wildly around her face. Though the pain suppressor dulled the physical discomfort, she couldn't suppress her genuine disgust.

"That's for associating with blood traitors, " Mulciber sneered, and the cruel enjoyment in his voice was so convincing that Mary felt genuine fear spike through her artificial calm.

"Locomotor Mortis!"

The leg-locking curse hit next, and Mary fell hard, her books scattering across the stone floor. The pain-dulling potion kept the worst of the impact from registering, but she still felt the jarring shock of knee hitting stone.

"Please, " she gasped, trying to reach for her wand but finding her legs uselessly locked together. "Please stop."

"Stop?" Mulciber laughed, cold and cruel. "I've barely started."

From the shadows, she caught a glimpse of movement, Rosier and Wilkes watching from an alcove, their expressions hungry and approving. This wasn't just for them, she realized. This was performance art for Death Eaters.

"Aguamenti Frigus!" Mulciber's wand produced a jet of ice-cold water that soaked her completely. The sudden shock made Mary gasp despite the potion's dulling effect. Cold water dripped from her hair, down her face, beneath her robes.

Mulciber circled her slowly, his wand held casually between his fingers. "I've been watching you organize your little medical supplies, MacDonald. Playing nurse for blood traitors?"

He knew exactly what to say, things that would sound damning to Rosier while actually confirming information the alliance already knew was compromised.

Mary tried to reach for her fallen wand, fingers stretching desperately across the stone floor. Mulciber stepped on her hand, not crushing, but firm enough to trap her.

"Did you really think we wouldn't notice?" His voice dropped lower. "Did you think we'd just ignore your pathetic little resistance?"

In the shadows, Rosier nodded appreciatively, eyes gleaming with satisfaction.

Mary was supposed to beg now. They'd rehearsed this, pleading would make the scene more convincing while giving Mulciber an excuse to stop. But something shifted in her. This performance needed authenticity, and submissive begging wasn't authentic to who she was.

Instead, she met his eyes with defiant fury.

"Is this supposed to scare me, Mulciber?" Her voice was low but steady. "You think your schoolyard bullying compares to what's coming? I'm not afraid of you."

Mulciber's eyes widened fractionally, this wasn't the script. But he adapted instantly, his face hardening with manufactured rage.

"You should be afraid, MacDonald." He raised his wand higher. "Flipendo Maxima!"

The enhanced knockback jinx was stronger than they'd practiced. It lifted Mary off the floor and hurled her back against the wall. Even with the pain suppressor, she felt the impact reverberate through her body, knocking the breath from her lungs. She slid down the wall, genuinely struggling to inhale.

Too far. He'd gone too far.

She saw it in his eyes too, shock at his own force, horror at how easily the old patterns returned.

For a moment, the performance became terribly real. Mary tasted blood where she'd bitten her lip in the impact. Her vision swam slightly. The bat bogies still flapped frantically around her face, adding humiliation to genuine pain.

Mulciber stepped closer, wand still raised. His eyes flickered toward the alcove where Rosier watched, then back to Mary. She could see the internal struggle, he needed to finish this convincingly but didn't want to cause more actual harm.

Mary made the decision for him. She curled into herself, shoulders shaking in what appeared to be sobs but actually concealed her reaching for the small vial in her pocket. She popped the cork with her thumb and, while ostensibly covering her face in shame, emptied the contents onto her sleeve.

"Look at you, " Mulciber said, voice thick with manufactured contempt. "Pathetic."

"Flagrante!" The mild burning hex hit her already-soaked robes, creating an instant cloud of steam and a sizzling sound far more dramatic than the actual sensation.

Mary screamed, partly from the mild sting that penetrated even the pain suppressor, but mostly for effect. She thrashed dramatically, the movement spreading the clear liquid from the vial across her face and neck.

Within seconds, her skin erupted in spectacular boils and welts, harmless Bulbadox Powder mixed with Transient Reactive Solution that would fade in exactly thirty minutes, but looked horrific.

Several portraits gasped. Down the corridor, a group of third-years appeared, saw the scene, and fled in terror.

"Think about where your loyalties should lie, MacDonald, " Mulciber sneered, lowering his wand at last. "Next time I won't be so gentle."

He turned and walked away, his robes billowing behind him. From the shadows, Rosier and Wilkes emerged, nodding approvingly before following Mulciber down the corridor.

Mary remained slumped against the wall, legs still locked together, face still plagued by bat bogies, skin erupting in spectacular boils, soaking wet and shivering. The performance had become more real than intended, but it had worked.

She waited until the footsteps faded before whispering, "Lily? James?"

They appeared instantly, disillusioned spell dropping. Lily rushed to her side, wand already moving to counter the hexes.

"I'm so sorry, " she whispered, removing the leg-locker curse first. "That went too far."

"The knockback jinx was stronger than we practiced, " James said grimly, helping Mary sit up while Lily dealt with the bat bogies. "Are you alright? That looked like it really hurt."

"It did, " Mary admitted, wincing as she moved. "But it worked. Did you see Rosier's face? He completely bought it."

Lily worked methodically, removing each hex and casting diagnostic charms. "Two bruised ribs from the impact. That's not what we agreed to."

"My fault, " Mary said, grimacing as she tried to stand. "I went off-script. Said something defiant instead of begging. He had to respond more forcefully or it wouldn't have been believable."

James supported her weight. "We should get you to Madam Pomfrey."

"No, " Mary said sharply. "Rosier might have someone watching the hospital wing. I need to stay injured for at least an hour to maintain the deception."

"But your ribs, "

"Are bruised, not broken. Nothing the alliance's potions master can't handle, " she said, nodding to Lily.

Lily looked torn. "We can at least get you to the Room of Requirement. I have dittany and bruise paste there."

Mary nodded, leaning heavily on James as they began the slow journey through back corridors. The pain suppressor was wearing off, and each step sent flares of discomfort through her body.

"For what it's worth, " James said quietly, "that was one of the bravest things I've ever seen."

"Not brave, " Mary muttered. "Necessary."

"Still brave, " Lily insisted. "And we won't forget it."

They walked in silence for a moment before Mary spoke again, her voice smaller. "I felt it, you know. When he was hexing me. That wasn't all acting on his part."

"What do you mean?" Lily asked.

"There was a moment, when I defied him, where something old woke up in him. Like muscle memory. The person he used to be came back just for a second." Mary shivered. "It was terrifying."

James and Lily exchanged troubled glances over her head.

"That's what we're all afraid of, " James said softly. "That when the real attack comes, we'll all discover who we really are under pressure. And we might not like what we find."

They continued in silence, each lost in their own thoughts. Mary's mind kept replaying that moment when Mulciber's eyes had changed, when the performance became briefly, horrifyingly real. The line between acting and authenticity had blurred, just for an instant.

And in three days, there would be no acting at all. Just real hexes, real danger, and real choices that would reveal who they truly were.

The next morning, Mulciber sat alone at breakfast, methodically spreading marmalade across his toast while studiously avoiding eye contact with the Gryffindor table. The whispers surrounding him created an almost tangible barrier, word of his attack on Mary MacDonald had spread through the castle with typical Hogwarts efficiency. Students from other houses shot him venomous glares while his fellow Slytherins regarded him with newfound respect.

Precisely as planned.

Rosier slid onto the bench beside him, a rare smile playing across his aristocratic features. "Well done, " he murmured, helping himself to porridge. "Quite the performance last night."

"It wasn't a performance, " Mulciber replied, keeping his voice flat and disinterested.

"Of course not, " Rosier agreed, his eyes glinting. "The Mudblood needed reminding of her place. I particularly enjoyed the steam when you hit her with that Flagrante. Creative touch."

Mulciber forced himself to smirk. "I thought so."

Wilkes joined them, leaning across the table. "MacDonald's not at breakfast. Still in the hospital wing, apparently. Looks like you made quite the impression."

"She'll think twice before organizing medical supplies for blood traitors again, " Mulciber said, taking a deliberate bite of his toast.

The conversation halted abruptly as Professor McGonagall approached the Slytherin table, her face severe as winter. "Mr. Mulciber, " she said, voice carrying just far enough for neighboring students to hear. "The Headmaster wishes to see you immediately."

Mulciber affected a look of bored defiance, though his stomach tightened. This wasn't part of the plan. "What for?"

"I believe you know exactly 'what for, '" McGonagall replied, her Scottish brogue more pronounced in anger. "Mr. Snape, you will accompany us as well."

At the far end of the table, Severus looked up with perfectly feigned surprise. He rose smoothly, his face unreadable as he joined them.

"I'm sure this is all a misunderstanding, " Rosier offered smoothly. "Mulciber was merely defending himself after MacDonald provoked him."

McGonagall's nostrils flared. "I don't recall asking for your version of events, Mr. Rosier." She gestured sharply toward the exit. "Come along, both of you."

As they followed McGonagall from the Great Hall, Mulciber caught Rosier's encouraging nod. Good. The Death Eater faction believed this was all part of the expected aftermath, Dumbledore's predictable response to student violence, nothing more.

None of them had discussed this possibility with Dumbledore or McGonagall.

"Did you know about this?" Mulciber whispered to Severus as they climbed the stairs to the Headmaster's office.

"No, " Severus replied under his breath. "But we should have anticipated it. There's no way Dumbledore wouldn't have heard about last night."

McGonagall remained silent, her back rigid with disapproval. When they reached the gargoyle, she spoke the password, "Peppermint Toad", with sharp precision.

The Headmaster's office was bathed in morning light when they entered. Dumbledore sat behind his desk, blue eyes serious behind half-moon spectacles. Fawkes watched from his perch, unnervingly attentive.

"Ah, Mr. Mulciber, " Dumbledore said, voice deceptively mild. "Please sit down. Mr. Snape, you may stand by your housemate as his company."

Mulciber sank into the chair, mentally calculating his approach. If this was a genuine disciplinary meeting, he needed to maintain his cover as an unrepentant Death Eater sympathizer. If Dumbledore knew about the staged attack, revealing too much could compromise their entire operation.

"Do you know why you're here, Mr. Mulciber?" Dumbledore asked.

"I assume MacDonald complained about our little disagreement last night, " Mulciber replied with practiced insolence.

"Miss MacDonald is currently in the hospital wing with multiple injuries, " Dumbledore said, his voice hardening slightly. "Three separate witnesses reported seeing you attack her unprovoked in the third-floor corridor."

Mulciber shrugged. "She provoked me."

"Indeed? And how exactly did a girl carrying library books provoke you into casting multiple hexes?"

Mulciber hesitated, glancing briefly at Severus, whose expression remained carefully neutral. Was Dumbledore truly unaware of their plan? Or was this elaborate theater for McGonagall's benefit?

"She made a remark about my family, " Mulciber improvised. "Suggested we'd all end up in Azkaban."

McGonagall made a sound of disbelief. "And that justified sending her to the hospital wing?"

Mulciber met her gaze with calculated defiance. "I was defending my family's honor."

"By attacking a defenseless student?" McGonagall's voice was scathing.

"She had her wand, " Mulciber countered. "She just wasn't quick enough to use it."

Dumbledore leaned forward, his blue eyes suddenly piercing. "Mr. Mulciber, I wonder if you realize the gravity of your actions. In ordinary times, attacking a fellow student would result in detention. But these are not ordinary times, are they?"

Something in Dumbledore's tone made Mulciber's certainty waver. The Headmaster's eyes seemed to see through his performance to the truth beneath.

"I don't know what you mean, sir, " Mulciber said carefully.

"Don't you?" Dumbledore's gaze shifted briefly to Severus, then back. "In these troubled times, actions between students can be misinterpreted as something more significant. Tensions between houses can be seen as reflections of larger conflicts."

A sudden, terrible clarity came to Mulciber. Dumbledore knew. Not just about the attack, but about everything, their network, the impending Death Eater assault, possibly even his own double-agent status. But McGonagall's genuine anger suggested she didn't know this meeting was a charade.

"I was just settling a personal score, " Mulciber insisted, clinging to his cover. "It had nothing to do with anything else."

"Yet Miss MacDonald reports you accused her of 'organizing medical supplies for blood traitors, '" Dumbledore noted mildly. "Rather specific language, wouldn't you agree?"

Severus stepped forward slightly. "Headmaster, if I may? There has been tension between these particular students for years. While Mulciber's actions were inexcusable, I believe this was indeed personal rather than... political."

Dumbledore's eyes twinkled briefly. "Perhaps, Mr. Snape. Though I find the timing interesting."

"The timing, sir?" Severus asked innocently.

"Yes. Just days before the holiday break, when students should be focused on exams and festive preparations." Dumbledore steepled his fingers. "Rather than, say, house rivalries."

McGonagall cleared her throat. "Albus, whatever the context, Mr. Mulciber's actions require significant consequences."

"Indeed they do, Minerva." Dumbledore's expression grew stern. "Mr. Mulciber, you will serve detention every evening until term's end. You are banned from Hogsmeade for the remainder of the year. Fifty points will be deducted from Slytherin. And you will personally apologize to Miss MacDonald."

Mulciber allowed himself to look appropriately outraged. "Apologize? To a Mud, to MacDonald?"

"Yes, " Dumbledore said firmly. "And should any similar incidents occur, your expulsion will be immediate." He leaned forward, voice dropping to a near whisper. "I wonder what would happen to you then, Mr. Mulciber? Sent home early, before... certain events might transpire?"

The implication was unmistakable. Dumbledore was warning him, too obvious a performance might result in him being sent away before the Death Eater attack.

"I understand, Headmaster, " Mulciber said, dropping his defiance.

"Good." Dumbledore straightened. "Professor McGonagall, please escort Mr. Mulciber to his first class. Mr. Snape, a moment of your time."

After McGonagall and Mulciber left, Severus remained standing, his posture tense.

"An interesting situation, " Dumbledore observed, stroking Fawkes absently. "A staged attack to maintain Mr. Mulciber's cover with his Death Eater associates."

Severus didn't bother denying it. "How did you know?"

"Miss MacDonald's injuries were too precisely calibrated, painful but non-permanent. And the timing is suspect, coming just before our anticipated... visitors." Dumbledore sighed. "Did you consider informing me of this plan?"

"There wasn't time, " Severus said carefully. "Rosier confronted Mulciber yesterday. We had hours to respond."

"And Miss MacDonald agreed to this?"

"Yes. It was her choice."

Dumbledore's expression grew troubled. "You're asking students to make impossible choices, Severus."

"We're fighting a war, " Severus replied coldly. "Impossible choices are all we have."

"Perhaps." Dumbledore studied him for a long moment. "But remember this: how we fight determines what remains after the battle ends. If we sacrifice too much of our humanity to win, victory becomes meaningless."

"Save the philosophy for peacetime, " Severus said. "Right now, we need to survive."

Dumbledore's eyes grew sad. "You've learned much in life, Severus. But some lessons have yet to penetrate."

Severus stiffened. "Is there anything else, Headmaster?"

"Just this: your detention performances with Mr. Mulciber will provide excellent cover for strategy meetings. Seven o'clock each evening in my office."

"Understood."

As Severus descended the spiral staircase, his mind raced.

Dumbledore had confirmed what he'd long suspected, the Headmaster knew far more than he revealed. The staged disciplinary meeting had served multiple purposes: maintaining Mulciber's cover, establishing a reason for regular strategic gatherings, and reminding Severus that Dumbledore remained a player in this game, not merely an observer.