The bell in the tower of St. Jude’s did not ring for the dead. It rang for the living who had forgotten how to breathe. You remember the smell of the stone, cold and damp, like the inside of a riverbed. You are seven years old, though the years feel like a single, stretched-out breath. The air in the cellar is thick with the scent of rotting apples and the sharp, metallic tang of blood. This is not a cellar for apples. It is a cellar for sins.

Father Elias stands before you, his hands wrapped in white linen, the fabric stained a deep, arterial purple. He is your mentor, the man who taught you that God is in the breaking of bread, in the rising of the loaf, in the sweet, yeasty exhale of fermentation. But today, the bread is different. The dough in the great oak trough is not pale and soft. It is dark, almost black, and it pulses with a rhythm that matches your own frantic heart.

"Eat," he says. His voice is low, a rumble from the earth itself. He does not look at you. He looks at the dough. "You have carried the poison for three days. It is time to let it go. Time to transform it."

You do not understand why your hands are shaking so violently that you drop the knife. The blade clatters on the stone floor, the sound echoing like a gunshot in the silence. You look at the dough, and you see your own face in it, distorted and screaming. You have been told this is a cure. You have been told that the sickness in the village, the one that takes the children one by one, is a curse that can only be lifted by a sacrifice of the self. You believe him. You are a child, and he is a priest, and the system of the church is the only law you know. You believe that if you eat the flesh, the evil will pass into you, and you will be the vessel, the threshold between the living and the dead.

But as you bring the spoon to your mouth, the taste is not of yeast and grain. It is of iron. It is of fear. It is of the specific, cloying sweetness of decay. You spit it out. The liquid splashes against the stone, sizzling as if it were acid.

Father Elias turns to you. His eyes are not the warm, brown eyes of the man who braided your hair on your birthday. They are hollow pits, lined with a yellowish, waxy film. "You misunderstand," he whispers. "It is not a sacrifice. It is a conversion. The body is a temple, but the temple is leaking. We must seal the cracks."

You run. You do not remember climbing the stairs, or the heavy oak door swinging open to reveal the narrow, winding spiral that leads to the chapel above. Your lungs burn. Your legs feel like they are made of wet sand. You burst into the chapel, the stained glass windows casting long, jagged shadows across the altar. The light is blue and cold, like winter water.

There is another person in the chapel. It is not Father Elias. It is a woman, sitting on the altar steps, her head bowed. She is wearing the robes of a novice, the same grey wool that you wear. You recognize her. It is Sarah. Sarah, who shared your bread when you were hungry. Sarah, who taught you how to pick the best blackberries from the thorny brambles behind the abbey wall.

"Sarah," you gasp. "Sarah, please. He’s... he’s not..."

She lifts her head. Her face is pale, her lips cracked and bleeding. She looks at you, and for a moment, you see the same confusion in her eyes that you feel in your own heart. But then, her expression changes. It hardens. It becomes something you have never seen in her before. It becomes pity.

"He is not what you think," Sarah says. Her voice is thin, reedy, like wind through dry grass. "We are not what he thinks. We are the food, Thomas. We are the medicine."

You step closer, your fear giving way to a cold, hard anger. "What are you talking about?"

"Look at the window," she says. She points to the rose window above the altar. The glass is not colored. It is clear, but it is cracked in a pattern that looks like veins. "Do you see the red? It is not paint. It is blood. It has been there for a hundred years. They say the abbey was built on a grave. They say the foundation stones are soaked in it. But that is not true."

She stands up. She moves with a grace that is unsettling, as if she is dancing. "The truth is simpler. And it is crueler. The sickness is not a curse. It is a hunger. The abbey has been hungry for a long time. It eats the young. It eats the weak. And it eats the guilty."

You look at the altar. The white cloth is stained with the same dark, pulsating substance as the dough in the cellar. You realize, with a shock that stops your heart, that the stain is not blood. It is mold. It is a fungus, black and velvety, spreading across the fabric, the wood, the stone. It is the same fungus that was in the dough. It is the same fungus that is in the air.

"You know," Sarah says. "You’ve known all along. You just didn’t want to believe it. You wanted it to be a mystery. A puzzle to be solved. A crime to be investigated. You wanted to be the detective, Thomas. You wanted to be the one who finds the truth and saves us. But the truth is not a mystery. It is a biology. It is a cycle."

You look down at your hands. You can see, if you squint, the fine, black threads of the fungus crawling up your wrists. You had thought it was dirt. You had thought it was the shadow of the stone. But it is alive. It is part of you.

"Father Elias," you say. Your voice is not your own. It is deeper, older. "He told me to eat it. He told me to transform."

"Yes," Sarah says. "Because he is dying. The fungus is in his blood. He is the host. And he needs a new host. He needs a threshold. Someone to carry the spores out of the abbey and into the world. He needs you, Thomas. Because you are the only one who still believes in him. The only one who still loves him."

The word love hits you like a physical blow. You have loved Father Elias. You have loved him with the blind, instinctual devotion of a child. You have loved him because he made you feel safe, even when the world outside was chaotic and cruel. You have loved him because he gave you purpose. But now, you see that your love is a chain. It is the rope that drags you into the dark.

"I don't want to be the threshold," you say.

"Then you must break the cycle," Sarah says. "You must destroy the source."

You look around the chapel. The source is not the dough. The source is not the cellar. The source is the abbey itself. The stones, the walls, the very air. The fungus has been here for centuries, feeding on the fear and the guilt of the monks, the nuns, the children. It has built a kingdom in the dark, a kingdom of rot and decay.

You walk to the altar. You pick up the heavy iron candelabrum. It is cold in your hands, solid and real. You look at Sarah. She is watching you, her eyes wide, filled with a terrible hope.

"If I do this," you say, "will it stop?"

"I don't know," she says. "But you have to try. You have to let go. You have to let go of him. You have to let go of the idea that he is good. You have to let go of the idea that you are innocent."

You raise the candelabrum. The metal gleams in the blue light. You swing it down, not at Sarah, not at Father Elias, but at the rose window. The glass shatters. The sound is like a scream, a high, piercing shriek that tears through the silence of the chapel.

You swing it again. And again. You smash the stained glass, the altar, the pews. You break the stone floor. You dig into the earth beneath the abbey. The black fungus rises up, writhing like a snake, trying to cling to you. It touches your skin, and you feel a burning pain, a searing heat that spreads through your veins.

You do not stop. You keep breaking. You keep digging. You are no longer a child. You are a force of nature. You are the storm that clears the sky. You are the fire that purifies the ash.

When the light from the broken window floods into the cellar, you are standing in the ruins of the abbey. The stones are cracked. The walls are crumbling. The black fungus is exposed to the air, and it is dying. It shrivels and turns to dust in the sunlight.

Father Elias is gone. You do not know where he went. You do not care. You have destroyed the threshold. You have broken the cycle.

You walk out of the abbey. The village is below you, a patchwork of thatched roofs and smoke. The air is clean. It smells of rain and earth. You look at your hands. They are clean. The black threads are gone.

You are free.

But as you walk down the hill, you feel a hollow space in your chest. A void where your love used to be. You realize that you have not just destroyed the fungus. You have destroyed the part of yourself that needed it. You have destroyed the child who believed in the magic of the bread, the child who believed in the mercy of the priest.

You are alone. You are free. And you are afraid.

The sun is setting, painting the sky in shades of orange and purple. The village lights are coming on, one by one, like stars falling to earth. You walk into the light, into the dark, into the unknown. You do not look back. You cannot. The threshold is behind you. It is broken. It is dead.

And you are walking forward, into the world, carrying nothing but the weight of your own freedom.