Chapter Text
He was aware of the blood before anything else.
It was always the blood. Thirty-eight years of living had taught Severus Snape that the body, when it is truly dying, reduces itself to a single obsessive inventory. The warmth of it spreading beneath his cheek against the Shrieking Shack's rotted floorboards. The smell of copper so thick it coated the back of his throat. The sound of it — quieter than one would expect, just a soft, patient welling with each weakening heartbeat.
*Nagini.*
He didn't need to touch the wound to know. He'd seen men die of snake bites before. He knew precisely how much time he had, and it was not enough.
The boy had gone.
Of course he had. Potter had taken the memories — Severus had made sure of that, had forced them out through sheer bloody-mindedness even as his vision had begun to grey at the edges — and then the boy had gone, because there was a war to finish and Severus Snape was already as good as a corpse. A reasonable calculation. He bore Potter no particular ill will for it.
He was, at the end, simply tired.
Thirty-eight years. A childhood that had been more wound than memory. Hogwarts, which had been sanctuary and battleground in equal measure. The Dark Lord, whose service had carved out everything soft inside him and left behind something leaner and meaner and less human than what had gone in. Dumbledore, who had aimed him like a weapon and never quite let himself look at what the firing cost. Lily —
*Don't.*
He pressed his cheek harder against the floor. The wood grain bit into his skin. Focus on that. Focus on anything.
It was strange, he thought distantly, how very small dying felt. He had spent so many years imagining it — had come close enough to taste it on several memorable occasions — and had always assumed there would be something more to it. Some final revelation. Some accounting.
There was only the cold floor. The sound of wind through broken windows. The distant noise of a battle he would not live to see the end of.
*It is enough,* he told himself. *It has to be enough.*
His eyes, which he had not realized he had closed, refused to open again.
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And then — inexplicably, impossibly — they did.
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The ceiling was wrong.
That was his first coherent thought, surfacing through layers of confusion like a bubble through dark water. The ceiling was wrong. The Shrieking Shack's ceiling had been exposed beams, blackened with decades of damp, strung with cobwebs. This ceiling was cracked plaster, water-stained in one corner, peeling near the light fixture that held a single bare bulb.
He knew this ceiling.
The realization arrived not with drama but with the quiet, devastating certainty of a diagnosis. He had stared at this ceiling through every sleepless night of the first eleven years of his life. He had memorized its cracks the way other children memorized nursery rhymes, lying still and silent while the sounds from downstairs told him whether it was safe to move.
*No.*
He sat up.
The movement was wrong. His center of gravity was wrong. His arms, braced against the thin mattress to push himself upright, were wrong — too short, too slight, the hands at the end of them small and bony and bearing none of the burn scars he had accumulated over twenty years of potion-making.
He looked at his hands for a very long time.
Outside the window of what had once been his bedroom, Cokeworth was doing what it always did: existing in a state of grey, industrial resignation. The mill chimneys stood against a colourless sky. Somewhere below, the river Irwell moved sluggishly between its banks. A dog was barking three streets over.
1967.
He didn't know how he knew. He simply did, with the same bone-deep certainty with which he had recognized the ceiling. The quality of the light. The smell of the air. The particular texture of the silence in the house around him — his mother moving carefully in the kitchen below, making herself small, making herself quiet, the way she always did when his father was home.
Severus Snape — aged thirty-eight, spy, murderer, former Headmaster of Hogwarts, dead man — sat in the body of a seven-year-old child in a house on Spinner's End in the autumn of 1967, and did the only thing available to him.
He breathed.
In through the nose. Out through the mouth. A technique he had learned from Dumbledore, of all people, in the early days of his double life, when the gap between what he felt and what he was permitted to show had threatened to crack him open. *Ground yourself,* Dumbledore had said, in that infuriating way he had of offering wisdom precisely when wisdom was least welcome. *When everything else is uncertain, the breath remains.*
He had hated the advice then. He found it marginally less offensive now.
In. Out.
His magical core pressed against the inside of his skin like something caged.
That was — new. That was not how he had experienced magic before, not even in the height of his power. It sat behind his sternum and hummed along his nerve endings and pushed against his boundaries with the restless, barely-contained energy of a river in flood. His Occlumency walls, rebuilt on pure instinct the moment his mind had come online, were the only thing keeping it from simply *radiating* out of him. Even contained, he suspected he was leaving traces on the ambient magic of the room. Any competent practitioner who walked through the door would feel it immediately.
This was a problem.
He catalogued the other problems with the methodical efficiency of a man who had long since learned that panic was a luxury he could not afford.
He was seven years old. He was in 1967 Cokeworth. He had the memories of a thirty-eight-year-old man, the magical power of a thirty-eight-year-old man, and the body of a child who had not yet learned to properly hold a wand. His father was apparently in the house. Tom Riddle — Lord Voldemort, though he had not yet declared that name to the world at large — was gathering followers with quiet, deliberate patience, building something that would not yet reveal its full horror for another decade.
Severus knew exactly how that horror would unfold.
Not because he had been told. Dumbledore had never told him everything — had told him precisely as much as each particular mission required and nothing more, a policy Severus had resented for years before reluctantly recognizing its operational logic. But twenty years of service had given him things more valuable than briefings. He knew the names. Every Death Eater he had served beside, the ones who wore their allegiance openly and the ones who had buried it so deep that even their families hadn't known. He knew the dates — attacks that the wizarding world would record as tragedies, disappearances that would never be officially solved, Ministry officials whose corruption had cost lives. He knew Voldemort's methods, his psychology, the particular shape of his paranoia and his pride and the specific weaknesses that pride created.
He knew who would die, and when, and at whose hand.
He knew who could be saved.
That was what he carried. Not secrets whispered to him by a trusting old man, but two decades of accumulated intelligence, hard-won and paid for in ways he did not intend to examine closely in the next several minutes. It was, he recognized with the detached clarity that extreme circumstances sometimes produced, considerably more dangerous than any single piece of information could have been. A mosaic. A complete picture, assembled fragment by fragment from the inside of the war itself.
Dumbledore would want it.
The thought sat in his chest like a stone. He had spent the last year of his life executing a plan that Dumbledore had constructed around his own death, and he had done it without flinching, because flinching had not been permitted. He had hated Dumbledore, by the end, with the particular exhausted hatred of a man who understands that the person he is furious at is also the person he most needed and the person who most needed him. It was a complicated emotion. He had not had time to resolve it before dying.
He still did not have a resolution. But he would need the old man regardless. What he carried in his head was too large and too dangerous for one person to hold alone, and it would do precisely nothing sitting inside a seven-year-old in Cokeworth. He would need resources. He would need cover. He would need someone with the power and the authority and — critically — the imagination to understand what he was, what he knew, and what needed to be done about it.
There was precisely one person in the British wizarding world capable of all three.
He would go to Hogwarts.
He almost laughed at the absurdity of it. A seven-year-old in worn secondhand clothes, planning to travel to a school in the Scottish Highlands and demand an audience with its Headmaster. And yet. He had done stranger things. He had done significantly more dangerous things. He had knelt before Lord Voldemort and lied to his face while carrying enough intelligence to end him, and had done it convincingly, repeatedly, for years.
He could manage one train journey.
He rose from the bed — slowly, carefully, relearning the geography of a smaller body — and crossed to the desk. The notebook was there. He opened it to a blank page and held the pencil that sat beside it, testing the weight of it in his changed hand.
Then he began to write. Not a plan — his plans were in his head, where they were significantly safer. Not names — those too were staying exactly where they were until he was somewhere with proper magical protections around him. Just an inventory of what he had and what he needed, structured the way he had always structured problems that were too large to think about whole. Break it into components. Assign priority. Identify first steps.
It was what he did when the world shifted under his feet. He made lists. He turned chaos into something he could look at directly.
The scratching of the pencil was very loud in the quiet room.
Downstairs, something fell and broke. His father's voice rose, and his mother's answered it — low, placating, the voice she used when she was trying to make herself smaller than she already was. Severus's pencil stopped moving.
He sat very still, listening to the tones and rhythms of it, reading the situation the way a field operative reads a room: threat level, trajectory, likely duration. The particular cadence of his father's anger tonight suggested drink rather than genuine grievance, which meant it would exhaust itself faster. His mother was keeping the storm contained. This had happened before. This would happen again.
He had, in his original life, found this unbearable. Had lain in exactly this position, in exactly this bed, listening to exactly this, and felt the helplessness of it like a physical weight on his chest.
He did not feel helpless now.
He felt, underneath the exhaustion and the strangeness and the looming magnitude of everything that lay ahead, something that took him a moment to identify because it had been so long since he had last felt it clearly. Something almost like purpose. Something almost like the specific, focused calm that had always descended on him at the beginning of a mission — when the planning was done, the variables accounted for, and all that remained was to move.
*If it must be done,* he told himself, in the silence of his own mind, with the voice of a thirty-eight-year-old man inhabiting a seven-year-old body in a dying mill town in 1967, *it must be done properly.*
He picked up the pencil again.
Outside, the light was fading. Tomorrow, he would begin.