Read Chapter 26: The Tomb

The water had carved its own map through the chalk, and Émile followed it because there was no other path. His shoulder screamed with every step, the bullet wound wrapped in a strip torn from Félix's coat, the fabric soaked through with blood that had turned black in the lantern light. He had left Félix behind in the vault, wiring caps with shaking hands, muttering about escape routes that would never hold. And Karl was gone, taken by the English. Émile carried that guilt like a stone in his chest.

The tunnel sloped downward, then opened into a space that stole his breath.

It was not a dugout, not a bunker, not anything the war had made. The chamber rose twenty meters into darkness, its walls braced by Romanesque arches cut from the living rock, their stones fitted with a precision that no military engineer could match. In the center stood a pillar of black granite, nearly two meters thick, descending into the floor where it vanished into a shaft that gave back no echo when his boot scraped the edge. The pillar hummed. A low, constant vibration that traveled up through the stone and into his teeth, his sternum, the hollow of his skull.

The machine.

He saw it now, tucked against the far wall where the arches met. Iron boxes, German-made, their rivets still bright. Wires ran from the boxes into a junction panel bolted to the pillar itself, and beneath the panel, a fuse box with a handle painted in red and white.

And beside the fuse box, on a bed of straw that had been there for a hundred years or a hundred days, lay his brother.

Antoine was ancient. That was the word that came to Émile, and it was wrong and right at once. The face was his brother's—the same sharp jaw, the same dark hair—but the eyes had sunk deep into their sockets, and the skin had gone the color of old paper, and the hands that lay folded on his chest were the hands of a man who had stopped using them long ago. He wore a French uniform, but it hung on him like a shroud. Blue horizon, the color of the sky that Émile had not seen in weeks.

He was dying. This was not a thing Émile needed to be told. It was a thing he could smell, a sweetness in the air that had nothing to do with the damp.

"Antoine," he said.

The eyes opened. They were the same. The same brown, the same light. They found Émile and held him, and for a moment neither of them moved.

"Little brother," Antoine said. His voice was a rustling, like dry leaves in a current. "You walked a long way to find me."

Émile crossed the chamber, fell to his knees beside the straw. He did not touch Antoine, because he was afraid that touch would break him. "I thought you were dead. We all thought you were dead."

"I am dead." Antoine smiled, and the expression cracked the corners of his mouth. "Dead for months. The difference is I haven't stopped breathing yet."

The vibration of the pillar ran through the floor, through Émile's knees, through the hand he finally placed on his brother's shoulder. Antoine did not break. He felt like kindling.

"They put you here," Émile said. "To guard the charges."

"To guard nothing." Antoine turned his head, and the effort cost him. His gaze drifted to the fuse box, then to the pillar. "Did you count the wires, little brother? There are fourteen. Each one runs to a charge. Fourteen thousand kilos of ammonal, laid out across both lines. Moreau's engineers didn't plant it. Ours did. The Brotherhood's men did, years before the war started. It was always going to be here. It was only waiting for the right war to make it necessary."

"You were going to set it off."

"No." Antoine's voice hardened, and for a moment he sounded like the brother who had taught Émile to read the grain of coal, to feel the shift in the seams before the roof came down. "I was going to guard it. To die before I let anyone else set it off. The Brotherhood brought me here, and the priest—he placed the key in me, Émile. Do you understand? He made me certain. He made me so certain that I would never be able to doubt, never be able to warn, never be able to turn the handle myself."

"That's not the Antoine I know."

"The Antoine you knew died at Verdun." The eyes found him again, and they were wet. "The thing that's left is a lock. A lock the Brotherhood can turn whenever they choose to open their green door. And I've been waiting down here, little brother, listening to the water rise, listening to the men die above me, knowing that when the dawn comes and Moreau's barrage begins, the charges will fire and the whole plateau will come down."

Émile looked at the pillar. The vibration was steady, rhythmic, like something breathing. He understood, suddenly, what it was.

"The machine is the trigger," he said.

"No." Antoine shook his head. "The machine is the detonator. The pillar is the stability. The charges are laid in a circle around the plateau, and the wires meet here, in the pillar, where the detonator sits. If the pillar falls—if it drops into the shaft—the wires shear. The charges become burial gifts waiting for a digger who will never come."

"How do we make it fall?"

The silence between them stretched, filled only with the hum and the distant drip of water. Antoine closed his eyes.

"At the base of the pillar," he said. "There is a stone wedge, driven into the housing. It holds the pillar in place. If the wedge is removed, the pillar drops on its own weight. But it's jammed into the mechanism. It needs two men. Two men pressing in opposite directions, at the same moment, or the wedge binds and the pillar stays."

Émile looked at Antoine's hands, at the bones visible beneath the skin.

"You can't."

"I know." Antoine opened his eyes. "But I can hold a candle. You can work the wedge. And if you have an hour of strength left in you, little brother, and an hour of love left for me, then you'll put your back against that stone and you'll push when I say push. And we'll see if a Marchand can still dig."