Chapter Text
Prologue
The Astronomy Tower stood as an imposing sentinel of the night.
Cold air sighed across the stone floor and carried the distant sound of wind through the battlements. The torches along the spiral stair burned low, and their light stretched across the walls in long, flickering shadows. The castle should have felt alive, even at this late hour. Hogwarts never slept completely. Portraits whispered, ghosts swept through hallways, staircases shifted, and somewhere a door always creaked open or closed.
Tonight, the tower felt ominous and still against the backdrop of the night sky.
Harry stood braced halfway up the final flight of stairs with Dumbledore leaning heavily against his shoulder. The Headmaster's weight pressed down through Harry's arm and into his ribs, and every breath Dumbledore took sounded thin and almost strangled.
They had returned from the Inferi cave near the Cliffs of Moher only minutes earlier, although it felt to Harry to have been much longer than that. The biting cold of the sea still clung to Dumbledore's robes, and the damp fabric chilled Harry's arm where it clung to his sleeve. Harry grunted slightly as he adjusted his grip and tried to keep Dumbledore steady while they mounted the last of the steps.
Above them, the tower door remained open.
Moonlight spilled across the stone floor, pale and sinister. The wind hissed through the gap and pulled at the edges of Dumbledore's robes. Harry could see the dark outline of the railings and the wide drop beyond them.
"Professor," Harry said quietly.
Dumbledore did not answer at first. He paused near the top of the staircase and rested one hand against the wall as if the castle itself might help to keep him upright. His shoulders rose and fell once as he took a deep, steadying breath before he spoke.
"I am quite all right, Harry."
The words sounded calm on the surface, almost soothing, but Harry did not believe them. Dumbledore's face looked pale and drawn, and his hand trembled slightly against the stone.
Harry tightened his grip under Dumbledore's arm. "I should get help."
"No," Dumbledore said gently but quickly. "Not now."
The wind shifted across the tower again, bringing with it the sense of foreboding unease.
Harry frowned and looked toward the open doorway. Something about the quiet bothered him. Hogwarts rarely stayed silent for long, especially now. Too many people moved through the castle at all hours. Too many students whispered in the corridors, and too many teachers patrolled the halls.
Tonight, Harry heard nothing.
He and Dumbledore stepped onto the tower platform.
The stone floor stretched out before them, empty and bright under the moon. The railings circled the edges of the tower, and beyond them the grounds fell away into darkness. The lake reflected a thin line of silver light far below.
Harry's stomach tightened.
"Harry." Dumbledore's voice sounded clearer now, and Harry turned toward him. "You must listen carefully."
Something in the Headmaster's tone made Harry straighten. "Of course, Professor."
Dumbledore raised his wand.
The spell struck before Harry could react, sending him toppling to the floor like a stone board. His body froze instantly, muscles locking into place, and his breath caught halfway in his lungs. He tried to move his hand toward his wand, but nothing responded.
The Invisibility Cloak slid over his shoulders a moment later.
Harry could not pull it away. He could only lay there while the fabric settled around him and hid him from sight.
Dumbledore's voice reached him softly through the still air. "I ask that you trust me."
Footsteps sounded above them, and Harry's pulse jumped as he stared toward the open doorway.
Draco Malfoy stepped into the moonlight and out onto the tower platform with his wand raised.
Harry stared at him from beneath the cloak and felt a brief jolt of disbelief. For a moment he hardly recognized him. Draco looked thinner than Harry had ever noticed before, as if the last few months had worn him down piece by piece, like a shell tumbled through the ocean until it was fragmented and sharp. His skin carried a gray pallor that made him look ill, and dark shadows lay beneath his eyes like bruises from too many sleepless nights. His blond hair hung longer than usual, shaggy and limp around his temples instead of carefully combed back the way Draco normally kept it. Even the way he stood looked wrong to Harry. The boy who usually carried himself with such sharp confidence now held his shoulders stiffly, as if he alone shouldered a massive burden no one else could see.
The wind whispered across the tower and stirred the front of Draco's robes. When he moved slightly, Harry caught sight of a thin, silvery line that ran just above the collar at his throat. The scar from Sectumsempra. Harry felt a distinctive, sharp stab of guilt in his belly when he saw it. The mark was a pale and angry serpent against Draco's pale skin, a reminder of just how close Harry and that spell had come to killing him so many months earlier.
Draco did not notice Harry at all. His attention stayed fixated firmly on Dumbledore.
"Good evening, Draco," Dumbledore said.
The boy’s mouth tightened at the sound of his name and his hand tightened around his wand. He kept his wand pointed directly at Dumbledore's chest, but the fist holding it trembled slightly.
"You look awful," he said after a long, terse moment.
Dumbledore inclined his head slightly. "I have had a rather difficult evening."
Draco's gray eyes slid quickly over him. He took in the sea-soaked robes, the way Dumbledore leaned slightly toward the stone railing, and the faint tremor in his hand. Something akin to uncertainty passed across Draco's face, but he shoved it down almost immediately.
"You're alone," Draco said.
"Yes."
Draco stepped farther onto the platform, and the moonlight slanted fully across his face. The gray pallor of his skin looked even worse in the argent light, and Harry noticed again how hollow Draco's cheeks had become.
"You know why I'm here," Draco said.
"I believe I do," Dumbledore replied.
Draco gave a short, strained laugh, the kind that seemed to be half strangled and completely lacking humor. "Of course you do."
The wind moved across the tower again and rattled the iron railings that encircled the ledge. Draco's robes ruffled with the gust, and he tightened his grip on his wand as if he were gritting his very teeth.
"You've been watching me all year," he said. "You knew something was happening."
"Yes."
"And you didn't try to stop it."
Dumbledore regarded him calmly. "No."
Draco's jaw ticked harshly. For a moment he looked away toward the dark grounds below the tower, then he turned back again with renewed tension in his shoulders. "You should have," he said quietly, almost half to himself.
Dumbledore studied him with steady patience. "I wished to give you the opportunity to choose another path."
Draco's expression hardened. "You don't understand anything."
"I believe that I do."
"You don't know what they'll do if I fail," Draco said. His voice sharpened with sudden panic. "You sit in that office and think you can see everything, but you don't know what it's like."
Dumbledore did not interrupt him. He simply watched Draco with the same calm focus. “Years ago I knew a boy who made all the wrong choices. Let me help you.” Then, more quietly he added: "You are not alone, Draco.”
Draco laughed again, but it was a bitter sound. "Yes, I am. I don’t need your help. Don’t you understand? I have to do this. I have to kill you…or he’s going to kill me." He lifted his wand slightly higher and spoke the spell with clear precision: "Expelliarmus."
The scarlet flash struck Dumbledore's wand and sent it spinning through the air. It clattered once across the stone floor and then skittered over the edge of the tower into the awaiting darkness below. Draco stared after it for a moment, almost as if he had expected the spell to fail. Then he straightened slightly, and some of the tension left his shoulders.
"There," he said quietly. "I did it. It’s done."
Dumbledore stood before him without a weapon, his hands resting loosely at his sides. "Well done."
Draco's face twisted with venom. "Don’t say that."
"You have shown a great determination this year," Dumbledore said calmly.
"You think this is some kind of achievement?" Draco snarled.
"No. I think you have been asked to do something terrible." Dumbledore leveled his gaze with Draco, peering over the rims of his half-moon glasses with a downward tilt of his chin. “It’s a terrible thing to expect of a child.”
“I’m not a child.” Draco's wand hand trembled again as he took a more assured step forward. The tip hovered inches from Dumbledore's chest now, close enough that even a small movement would have ended the confrontation. "You're supposed to be afraid," Draco said.
"And yet, I am not."
Draco's voice cracked slightly as he spoke again. "Then pretend."
Dumbledore looked at him with quiet sympathy. "Draco, you are not a murderer."
Draco's shoulders stiffened at the words. "You don't know what I am," he said.
"I believe that I do."
Draco drew a slow breath that did nothing to steady his hand. "They're coming," he said quietly.
"Yes."
"They're already inside the castle."
Dumbledore nodded once with a soft, disappointed sigh. "I thought they might be."
Draco's eyes flashed with frustration. "You're not even surprised."
"No."
For a moment Draco said nothing. His wand remained raised, but Harry could see the strain running through his arm. "Avada —" The words faltered before it finished. Draco's voice broke, and the wand dipped slightly. "I can't," he said.
The admission hung heavily between them.
"Draco," Dumbledore said gently, "there are other choices."
Heavy footsteps thundered suddenly up the spiral staircase. Draco turned sharply toward the sound as several dark figures rushed onto the tower platform. Black robes swept behind them, and pale masks gleamed in the moonlight as they spread out across the entrance.
Death Eaters.
One of them stepped forward first. The mask hid most of their face, but the mass of dark curls spilling down over the collar of the robe was unmistakable. The woman laughed, high and sharp, and the sound echoed off the stone walls of the tower.
"Well done, Draco."
Draco’s spine stiffened immediately.
She moved closer with slow confidence and placed a clawed hand on his shoulder. Her fingers curled slightly into the fabric of his robes as if claiming him. "Good boy," she cooed softly.
Draco's expression tightened. For a brief moment, disgust shadowed his face, followed quickly by apprehension and then nothingness. He did not pull away, but his shoulders grew rigid beneath her hand.
Bellatrix Lestrange tilted her head, studying him through the mask with her dark eyes. "I knew you could do it."
Her laugh rang out again, bright and unhinged.
Draco's grip on his wand tightened until his knuckles turned white. The earlier tremor returned to his hand, and he kept his eyes fixed straight ahead as if refusing to acknowledge the way Bellatrix stood almost pressed against him.
She leaned closer. "Now be a good boy and finish the job," she hissed into his ear. Her fingers slid from his shoulder down his arm before returning to rest lightly against his back. "Just like the Dark Lord told you."
Draco's jaw clenched.
"You want to save your mummy, don't you? And your father." Bellatrix laughed softly. "Such a devoted son."
Draco did not answer. His wand remained raised, but the confidence he tried to project earlier had vanished entirely. The presence behind him changed the moment. A few minutes ago, he had stood alone with an impossible task. Now, that task had become a spectacle.
The other Death Eaters spread out behind Bellatrix, their masked faces turned toward him with silent expectation.
"Go on," Bellatrix murmured. "Finish it."
Draco stared at Dumbledore.
For the first time since he stepped onto the tower, he felt the full weight of their attention pressing down on him.
Dumbledore met his gaze without anger. "Draco," he said quietly.
Draco swallowed. The wand in his hand lifted again. "Avada —" The word broke apart in his throat. "I can't," he said at last.
Bellatrix's hand tightened sharply on his shoulder.
"What did you say?" she asked.
Draco did not look at her. "I…can't."
Before she could respond, another figure stepped forward through the line of Death Eaters: Severus Snape.
He moved past Bellatrix and stopped beside Draco. His dark eyes swept across the tower before settling on Dumbledore.
For a moment no one spoke.
Then Dumbledore addressed him. "Severus."
Snape's expression remained unreadable.
Dumbledore's voice softened. "Please."
Snape lifted his wand. "Avada Kedavra."
Green light burst across the tower.
The curse struck Dumbledore squarely in the chest. The force of it threw him backward against the railing, and then he tipped over the edge of the tower and disappeared into the darkness below.
The wind rushed through the empty space where he had stood.
For a moment Draco did not move.
The Death Eaters around him broke the silence first. Several of them stepped toward the staircase at once, their robes sweeping across the stone floor as they hurried toward the exit.
Bellatrix Lestrange threw back her head and laughed. The sound rang across the tower like shattered glass. "Dumbledore's dead!" she shrieked. "Dumbledore's dead!"
Her voice carried down the staircase as she ran toward it, already raising her wand. A burst of red light shot from its tip and struck the wall near the doorway. Another spell followed immediately after, fired into the dark hallway beyond.
"Dumbledore's dead!" she sang again, her laughter echoing as she disappeared down the stairs.
The other Death Eaters followed quickly behind her.
Snape remained where he stood for only a moment longer. His wand lowered slowly to his side as he watched the empty space where Dumbledore had fallen. Then he turned toward Draco.
Draco still stared at the railing.
The color had drained completely from his face. His wand hung loosely in his hand, and his shoulders looked stiff and unmoving, as if he had not fully comprehended what had just occurred.
Snape stepped closer and placed a firm hand on Draco's shoulder. "Come," he said quietly.
Draco did not answer, and Snape tightened his grip slightly as he guided the boy toward the staircase. Draco allowed himself to be moved without resistance. His steps looked slow and unsteady as he followed Snape across the tower.
Neither of them looked back.
Within seconds the tower fell silent again.
Harry remained frozen beneath the cloak.
The spell that held him began to loosen its grip.
At first the change felt like pins and needles spreading through his arms and legs. His fingers twitched slightly beneath the fabric, and the sudden sensation sent a surge of relief through him.
The paralysis broke all at once.
Harry sucked in a sharp breath and shot upright, the world tilting around him violently. The cloak slipped from his shoulders as he braced himself against the ground. His head spun, and he pressed one hand against his temple as if that might steady the world around him.
More footsteps thundered up the staircase.
Ron burst onto the tower platform with his wand already raised. Hermione followed close behind him, her eyes wide as she scanned the tower.
"Harry!" Ron shouted.
He crossed the distance between them in a few quick strides and crouched beside him. His hand landed firmly on Harry's shoulder. "Mate, what happened?"
Harry tried to answer, but the words tangled in his throat. His stomach churned violently, and for a moment he thought he might actually be sick.
Ron gripped his shoulder more tightly. "Harry?"
Harry forced himself onto his knees. His eyes darted toward the empty railing at the edge of the tower.
"Snape," he said hoarsely. "Snape killed Dumbledore."
Ron's face went white. "What?"
Harry pushed himself to his feet, still unsteady. "Snape killed him," he repeated. "He used the Killing Curse."
Ron's expression twisted with fury. "That greasy —"
"Draco," Harry interrupted, his voice suddenly sharp with urgency. "Draco was here. He disarmed Dumbledore."
Ron's grip tightened around his wand. "I knew it," he said. "You were right all along."
Harry's mind raced as the pieces slammed together. "He let them into the castle," Harry said. "The Death Eaters. They were already here."
Ron swore under his breath.
Hermione stood a few feet from Harry and Ron while Harry forced himself upright. Her eyes remained fixed on the staircase where the Death Eaters had fled. She heard Harry speaking, heard Ron's voice rising with shock and anger, but her attention stayed on the direction Draco had gone.
"Draco ran with Snape," Harry said.
Before Ron could answer, Hermione moved.
She did not wait for another word. She merely turned and ran.
Her footsteps echoed sharply down the spiral staircase as she descended. The stone steps blurred beneath her as she moved as fast as she could without losing her footing. Somewhere farther down the castle she could still hear Bellatrix Lestrange's voice carrying through the corridors.
"Dumbledore's dead!" Bellatrix shouted, her laughter echoing off the walls. "Dumbledore's dead!"
Hermione pushed herself harder, and she burst out into the corridor below the Astronomy Tower just as a figure turned the corner ahead of her.
"Malfoy!"
He stopped and turned towards her.
For a brief moment neither of them moved. The corridor stretched between them in a narrow line of torchlight, the stone walls bright and cold under the flames.
Draco looked worse up close.
The gray pallor Harry had noticed on the tower had not faded. If anything, he looked even worse. His face was drawn tight with shock, and the skin beneath his eyes had darkened into deep shadows. His hair hung loose and uneven around his temples, and his robes were disheveled from the rush down the stairs.
Hermione slowed as she approached him, but she did not lower her wand. "Where is he?" she demanded.
Draco said nothing.
Hermione's voice sharpened to a cutting blade. "Where's your godfather, Malfoy? Where's Snape?"
Draco's expression hardened slightly. Whatever shock lingered in his face vanished behind something colder and more familiar.
"What does it matter to you?" he said.
Hermione's grip tightened around her wand. "You let them into the castle," she said. "You brought Death Eaters into Hogwarts."
Draco's lip curled. "You always were slow, Granger."
"Dumbledore trusted you," Hermione snapped.
The words landed harder than she expected, and Draco flinched, but the reaction lasted only a moment before anger replaced it. "Don't pretend you understand anything," he said.
"I understand that you stood there while Snape murdered him."
Draco's jaw clenched. "I didn't kill him."
"You might as well have."
Silence settled between them, sharp and dangerous.
Hermione raised her wand.
"Expelliarmus."
Draco reacted instantly. "Protego!"
The shield charm flared in front of him, bright and transparent, just before Hermione's spell made contact, and her spell rebounded into the wall behind her. The impact shattered a sconce, sending sparks and broken iron clattering across the floor.
Hermione did not pause. "Stupefy!"
Draco dove sideways, and the spell exploded against the stone wall beside him. Chips of stone sprayed across the corridor.
"Stop!" Draco shouted.
Hermione's answer came in the form of another spell. "Petrificus Totalus!"
Draco rolled behind a suit of armor. The curse struck the metal chest plate instead, and the armor toppled forward with a deafening crash.
Draco scrambled back to his feet and raised his wand again. "You stupid mudblood," he snapped. "Diffindo!"
The cutting spell sliced through the air. Hermione twisted out of the way, but something sharp grazed her forehead. Warm liquid slid down into her eyebrow.
Blood.
Hermione wiped it away with the back of her hand and stepped forward again. "You don't get to run," she barked. “Stand and fight, you coward!”
Draco's breathing had turned ragged now. The bravado remained in his voice, but the fear beneath it showed in the tightness of his shoulders. “You should leave," he said.
"Not happening."
Another spell shot from Hermione's wand. Draco fired one back at the same moment.
The two spells collided halfway between them with a violent crack that rattled the corridor. Light burst outward in a blinding flash, and the force of it rattled the walls. A beam overhead groaned, and fragments of stone broke loose from the ceiling.
Something sliced across Draco's cheek. He staggered backward and brought his hand to his face as blood spread across his fingers.
The air around them changed.
For a moment the corridor filled with drifting particles, tiny motes of gold and silver that spun slowly through the air. The air itself seemed to fold inward for a moment, as if the magic had struck something deeper than stone.
Neither of them understood what they were seeing.
The stone floor gave a violent heave beneath Hermione's feet.
The walls shuddered. Stone cracked somewhere overhead, and the beam above them splintered with a loud report as debris rained down around them. Hermione threw her arms up instinctively, but the world tilted sideways beneath her and the next thing she knew she was lying prone on the cold stone floor with silver and gold dust motes drifting slowly through the air around her like fragments of old magic.
Her head throbbed in time with her hammering pulse.
Hermione sucked in a breath, coughing as dust filled her mouth and lungs, and pushed herself upright. The corridor spun slightly as she moved, and she pressed one hand against the floor to steady herself while she tried to understand what had just happened.
Her wand.
Hermione's eyes snapped open wider as she scrambled for it. Her fingers closed around the familiar wood just as movement caught her attention across the corridor.
Draco was moving.
He had pushed himself onto one elbow with a groan, his other hand pressed against the side of his head. Blood still streaked down his chin of his face from the cut on his cheek.
Hermione raised her wand immediately.
Draco's eyes found hers, gray clashing with brown, and for a moment he looked just as disoriented as she felt. Then, his gaze dropped to where his wand lay several feet away, across the stone floor.
He lunged for his wand at the same moment she tightened her grip on hers and levelled it on him imperiously. “Expelliarmus.”
The spell struck cleanly. Draco’s wand flew from his reach just as his fingers found the hilt of it, and it skidded across the corridor, clattering against the furthest wall. Draco jerked back in surprise.
Hermione’s wand remained fixated on him as she took a step forward, fury burning through the lingering dizziness in her head.
“Look at you,” she said, disgust cutting through her voice. “Running through the castle with them like you belong there.”
Draco’s breathing had turned ragged now. His yes flashed with anger. “You don’t know what you’re talking about.”
“I know exactly what I’m looking at.” Hermione’s grip tightened around her wand. “You got exactly what you wanted, didn’t you?” she said. “You proved you’re just like the rest of them. A snake.”
Dust and fragments of stone covered both of them. Fine particles still drifted slowly through the air, catching the torchlight in faint sparks of green and gold that floated down around their shoulders. The corridor looked as if something violent had passed through it. A section of broken armor lay scattered across the floor, and a crack split through one of the stone walls where their spells had collided.
Draco wiped a streak of blood from his cheek with the back of his hand and moved almost imperceptibly toward his wand.
Hermione tightened her grip immediately. "Don't," she warned.
Draco froze for a fraction of a second, then reached for his wand anyway. His movements still looked unsteady, but the anger in his eyes had returned as he got to his feet.
For a moment, neither of them spoke. They stood facing each other through the falling dust, both of them trying to regain their balance after the blast.
Then footsteps sounded down the corridor, fast and heavy.
Hermione’s eyes flickered briefly towards the sound before returning to Draco.
The footsteps grew louder. Someone was running.
A figure appeared around the corner, all red hair, freckles, and fury. Ron.
Hermione’s breath caught in sudden relief. “Ron –”
His wand snapped up before she could finish. "You filthy snake!"
Hermione blinked in confusion as the tip of his wand leveled directly at her chest. "What —"
Harry appeared a moment later behind him, moving past Ron and crossing the distance toward Draco. He brandished his own wand in a single fluid motion as he stepped to Draco's side. The tip of it lifted and aimed directly at Hermione.
"Are you all right, Draco?" Harry asked, not tearing his eyes away from Hermione.
Draco stared at him blankly, as though Harry had spoken another language. "What?"
Harry barely seemed to hear the confusion in his voice. His attention stayed fixed on Hermione with open hostility. "I knew you were up to something this year," Harry said. "I knew it."
Hermione felt the ground shift beneath her again, though this time nothing in the corridor moved.
"What are you talking about?" she said in a hoarse whisper.
Harry's grip tightened on his wand. "I should have finished you off in that bathroom," he said coldly. "I can't believe you helped kill Dumbledore after everything he did for you. For all of us."
Hermione stared at him.
For a moment, she thought he must be joking.
Then she looked at Ron.
Ron's wand remained trained on her, and the hatred in his face looked completely real.
"What are you doing?" Hermione said. "Ron, put your wand down."
Ron gave a harsh laugh. "Listen to her," he said to Harry. "Begging."
Hermione's heart began to thunder.
Across the corridor Draco still stood beside Harry, his wand loosely in his hand. His expression looked just as confused as hers.
"What the hell are you talking about?" Draco said.
Harry glanced at him briefly. "Stay behind me."
The words seemed to hit Draco almost as hard as Hermione, but before anyone else could speak, another voice cut through the corridor.
"Enough." Severus Snape stepped into view as his wand moved in a sharp arc. "Protego Duo."
The shield charm burst outward in a bright shimmer that spread across the space in front of Hermione. Harry and Ron both reacted instantly, their spells striking the invisible barrier and rebounding harmlessly against the walls.
Snape's dark eyes swept over the three boys.
"Lower your wands," he said calmly. "This does not end well for you."
For a moment none of them moved.
Then Snape turned toward Hermione and his hand closed firmly around her upper arm. "Come."
Hermione barely reacted. She couldn’t. This was too much. Too confusing. Too wrong.
Her mind was struggling to make sense of what had just happened. She allowed Snape to pull her forward, her boots scraping slightly against the stone floor as she stumbled to keep up with his stride.
She twisted once to look back.
Harry stood with Ron beside him, both of them still watching her with open hostility. Draco remained between them looking as confused as she felt.
Snape tightened his grip and pulled her farther down the corridor, and within seconds the three boys disappeared from view.
Draco remained standing in the shattered hallway with Harry and Ron beside him, the drifting gold and green dust still settling slowly through the air.