Eileen Moriarty had not slept in two days. The children were quiet, which was worse than crying. When they cried, she could hold them. When they were quiet, she had to listen to the sound of the city outside—the distant clatter of horse carriages, the occasional shout from a drunk man, the low moan of the Thames wind coming down through the streets that had no names because no one in power cared enough to give them names.

Her husband had been gone three months. Gone, not dead. Gone was worse. Dead was an ending. Gone was a sentence without a period.

She found it at midnight, when the fog was thickest and the gas lamps burned like drowned stars. She was coming back from the shelter where she had stood in line for four hours and received nothing. Not bread. Not tea. Not even the courtesy of a kind word from the woman behind the counter.

The sound came from behind a stack of rotting crates. It was not a cry. It was a sound between a growl and a whimper, low and broken, like something that had been hurt and had forgotten how to ask for help.

She shone her lantern. The beam cut through the fog and found two eyes. White eyes in a white face, surrounded by fur the color of moonlight on snow. It was a wolf. Or what had been a wolf. Its leg was caught in an iron trap, and the blood had soaked into the cobblestones and turned them the color of rust.

She should have run. Every instinct told her to run. A wolf in Whitechapel at midnight was not something that belonged in this world.

But she had spent three months watching her children go hungry and her husband disappear and her life dissolve into the fog like sugar in tea. Running was something other people did. Other people had choices.

She approached the wolf slowly, the way you approach a frightened animal or a desperate man. Both were equally dangerous. Both were equally helpless.

The wolf did not growl. It did not snarl. It simply looked at her with those pale eyes and waited to see what she would do.

She freed its leg. The trap was old and rusted, and it came open with a sound like a bone breaking. The wolf pulled its leg back and stared at the blood dripping onto the stones. Then it looked at her again, and this time there was something in its eyes that was not fear or aggression or gratitude. It was recognition. As if it knew her. As if it had been waiting for her.

She could not take it home. The children would scream. The neighbors would call the authorities. She took it to the only place she knew that was empty—the abandoned wine cellar beneath the building next door, a place she had discovered weeks before when she was looking for somewhere warm to sit and think about ending things.

The cellar was damp and dark and smelled of rot and old wine and older sins. She lit a single candle and set it on the ground. The wolf limped in after her and collapsed on the stone floor, its white fur stark against the black stones.

She brought it water in a chipped cup and a piece of bread she had stolen from the shelter. It drank the water and ate half the bread and lay down and closed its eyes.

That night, she slept for the first time in weeks.

The wolf healed. But it did not become tame. It did not become friendly. It remained what it was—a wild animal in a cellar, watching her with those pale eyes, waiting.

It began to stand at the cellar window at night and howl. Not the howl of a wolf calling to its pack. Something else. Something that sounded like a word she could almost understand.

She began to dream. The same dream every night. In the dream, the wolf stood in a field of white flowers and looked at her with those pale eyes, and she understood everything—her husband's disappearance, her children's hunger, the fog that covered the city like a shroud. In the dream, she was not afraid. In the dream, she was strong.

She woke from the dream each morning with tears on her face and a strange sense of certainty that she could not explain.

The wolf's behavior grew stranger. It would stand at the window and watch the street below. It would tilt its head as if listening to something she could not hear. And each time she felt on the edge of breaking—the edge she had been dancing on for three months—the wolf would make that sound again, that half-growl half-whimper, and she would stop.

She did not know why. She did not question it. In Whitechapel, you did not question the things that kept you alive.

Then the police came.

Inspector Hayes was a tall man with a face like a clenched fist and eyes that had seen too many dead bodies to be surprised by anything. He had been questioning neighbors about the disappearances—the women who had vanished in the fog, the ones whose bodies had never been found. He was looking for something. Or someone.

He knocked on Eileen's door at noon on a Tuesday. She opened it with the children behind her, hiding in the shadows of the room.

"Mrs. Moriarty," he said. "I have some questions."

She said nothing.

"Have you noticed anything unusual in the area? Any strangers? Any sounds at night?"

She thought of the wolf. She thought of its howls in the cellar. She thought of the way it would stand at the window and watch the street, as if it knew something she did not.

"No," she said. "Nothing unusual."

Hayes looked past her, into the room. His eyes fell on the children. They were thin. Too thin. Their eyes were too big for their faces.

"You should report to the shelter," he said. "Every Tuesday and Thursday. They have bread."

"I know," she said.

He left. She closed the door and leaned against it and listened to his footsteps fade down the street.

That night, the wolf did not howl. It sat beside her on the cellar floor and rested its head on her knee and did not move for three hours.

Three days later, the wolf disappeared.

It did not howl. It did not appear at the window. It simply was not there when she went down to the cellar in the morning. The door was open. The candle had burned down to a stub. And on the stone floor, where the wolf had slept, were two things: a complete rabbit, freshly killed, and a pocket watch.

She picked up the pocket watch. It was brass and old and covered in scratches. She opened it. The glass was cracked, but the hands were still moving. Tick. Tick. Tick.

Inside the lid was an engraving. She could barely read it in the candlelight. But she recognized the name.

James Moriarty.

Her husband's name.

She sat on the cellar floor and held the watch and listened to it tick and tried to understand what the wolf was telling her. But the wolf was gone, and the cellar was dark, and the only answer was the sound of the watch ticking in the silence.

She put the watch in her pocket. She went upstairs. She made tea for the children. She did not cry. She had run out of tears the day the wolf disappeared.

A week later, she left Whitechapel. She took the children by train to Liverpool and wrote a letter to no one and put it in a mailbox and watched it disappear into the slot and knew that some things are meant to be lost and some things are meant to be found and some things are meant to be carried in your pocket like a ticking watch that you do not understand but cannot throw away.

She never saw the wolf again. But sometimes, on foggy nights when the wind comes down from the north and the gas lamps burn like drowned stars, she opens her pocket watch and listens to it tick and wonders if her husband is alive, and wonders if the wolf knew, and wonders if knowing would have made any difference at all.

The watch still ticks. She does not know how. She does not wind it. It just ticks, in the dark, in her pocket, like a heartbeat that belongs to someone she used to love.