Read Chapter 17: The Gauntlet

The gallery narrowed until Émile had to turn sideways, his pack scraping against chalk that wept moisture. Behind him, Brandt’s breathing came in short, ragged pulls—the chaplain was not built for this, but he had not complained once since the cave-in. Félix led, his lamp throwing a weak cone of yellow that caught the walls in fragments, revealing old tool marks, then smooth stone, then nothing.

They had walked for an hour. Maybe two. Time dilated underground, stretched like hot glass.

“Stop,” Petit hissed from the rear.

Émile froze. The tunnel ahead curved sharply, and Félix had already pressed himself against the wall, dousing his lamp. The others followed suit, and darkness swallowed them whole—the kind of darkness that pressed against the eyes, that had weight and presence.

Then Émile heard it. Voices. German, low and clipped, carrying through the chalk like water through sand. And beneath the voices, a metallic scrape. Shovels. At least three men, maybe four, working.

Émile’s hand found his revolver. The metal was cold, slick with condensation. Behind him, he heard Brandt’s breath stop entirely.

“They’re between us and the green door,” Félix whispered, so faint it was barely a vibration in the air.

“We don’t know that’s where they’re going,” Émile said, though the lie felt thin. Every passage here bent toward the same destination, as if the tunnel network had been carved by something with a fixed intention.

The voices grew louder. One of them laughed—a short, brittle sound that echoed strangely, multiplied by the chalk until it seemed to come from everywhere at once. Then the laugh cut off, and a new sound took its place.

A hiss.

Émile knew that sound. He had heard it in training, in the manuals, in the nightmares that followed the first gas attack at Ypres. It was the sound of a canister bleeding death into the air.

“Gas,” he breathed.

“They’ve breached a pocket,” Brandt said, his voice suddenly sharp, professional. “The chalk here holds pockets of chlorine from old bombardments. If they’ve dug through one—”

“How far to the surface?” Émile asked.

“I don’t know. The journal spoke of air shafts, but I never mapped them.”

The hissing grew louder, and with it came the first acrid bite of chlorine, burning the back of Émile’s throat. Petit coughed, then stifled it with his sleeve.

“Move,” Émile ordered. “Forward. Past them.”

They shuffled down the tunnel in the dark, hands on the walls, the gas nipping at their heels like a patient wolf. Émile counted his steps. Forty. Fifty. The hissing faded, then swelled again as the tunnel curved. The Germans were ahead, and they were moving too.

Then a light flared, blinding.

Émile threw up an arm. When his vision cleared, he saw a young German officer standing at the junction ahead, a carbide lamp in one hand and a Mauser in the other, aimed squarely at Émile’s chest.

He was young. Younger than Émile. His uniform was clean, pressed even, a lieutenant’s pips on his collar. Behind him, three sappers crouched at a barricade of sandbags, their own rifles raised.

“Stop,” the officer said in accented French. “Throw down your weapons, or I will shoot the chaplain first.”

Brandt stepped forward, hands raised. “Karl?”

The officer’s eyes flickered. Recognition. Then something harder. “You. I thought you were dead, Father.”

“I should be. But these men saved me.” Brandt gestured at Émile. “They are not your enemy. Not now.”

The hissing grew louder. A wisp of yellow-green mist curled around the corner behind the German position, and one of the sappers swore in a low, urgent voice.

“Gas,” Émile said. He held up his empty hands. “We can fight. Or we can all die together. Your choice.”

Karl’s jaw tightened. He looked at Brandt, then at the gas, then back at Émile. For a long moment, the only sound was the hiss, growing closer, and the wet cough of one of the German sappers.

“Cover your mouths,” Karl said finally, lowering his pistol. “Follow me.”

He turned and led them down a side passage that Émile had not seen—a narrow, twisting shaft that sloped upward. The gas followed, but slower now, diffusion thinning it. Émile pressed his wet sleeve to his mouth and ran, half-blind, his feet finding purchase on stones that crumbled beneath his weight.

They surfaced in a cellar. The smell of smoke and cordite hit Émile like a physical blow, and he gasped, pulling in air that tasted of burning wood and earth. Above them, through a shattered ceiling, he saw grey sky. Daylight.

They were in a farmhouse. What remained of one. The walls were blackened, the roof partially collapsed, and through the gaps Émile could see the churned, cratered ground of no man’s land stretching in every direction. The front lines were a distant rumble of artillery, somewhere to the east.

Karl stood at the top of the cellar steps, watching the men emerge. His sappers fanned out, taking positions at the windows, their rifles trained on the open ground. The gas had not followed them—the air here was sharp with smoke and rain.

“We are between the lines,” Karl said. “We have perhaps an hour before the bombardment resumes. Enough time to decide what we are to each other.”

Émile stood, brushing chalk dust from his coat. His legs trembled. Behind him, Félix was helping Petit up, and Brandt knelt in the corner, murmuring a prayer.

“We owe you,” Émile said. “The gas. You could have let us die.”

Karl shrugged. “You had the chaplain. I could not let a man of God die for the sins of soldiers.” He stepped closer, and Émile saw something move beneath his tunic. Karl reached into his collar and drew out a small object on a chain.

The Blue Madonna.

Émile’s hand went to his chest. His own figurine was gone—he had not felt it since the scramble through the shaft.

“I took it from you,” Karl said, not apologetically. “I had to be sure.”

“Sure of what?”

Karl held the figurine up. It caught the grey light, and for a moment, the Madonna’s painted eyes seemed to look directly at Émile.

“My brother Klaus was a sapper. Like you. He was sent to destroy the deep galleries beneath Hill 60 and never returned. The army declared him dead.” Karl’s voice was flat, but his knuckles whitened around the chain. “But I know he did not die. He escaped. He is somewhere down there, and both armies are hunting him, because he found something.”

“The green door,” Émile said.

Karl’s eyes widened. “You know of it?”

“We’re looking for it ourselves.”

Karl lowered the figurine. He looked at Émile for a long moment, and Émile saw something shift in the young officer’s face—a calculation, a weighing of options, the same calculus of trust and survival that Émile himself had been doing since Verdun.

“Then we have a problem,” Karl said slowly. “My brother believes the green door leads to a medical depot. A place where the wounded of both sides were treated, deep beneath the war. He thinks it still holds supplies. Morphine. Bandages. Maybe more.”

“And you don’t believe him.”

Karl laughed, a short, bitter sound. “I believe him. But I also believe my brother is a liar and a coward who would sell his own mother to save his skin. He has been running for weeks. He is exhausted, desperate, and armed.”

“So why hunt him?”

Karl held up the Blue Madonna. The chain swung gently, catching the light.

“Because he has the map. He took it from the shrine where our family hid it, generations ago. That figurine was meant to stay with the family, but he stole it and gave it to a whore in Ypres, and she sold it to your people.” Karl’s eyes met Émile’s. “You have been carrying a piece of my family’s history in your pocket without knowing it. And now my brother carries the only key to the green door.”

Émile felt the weight of the words settle over him. The broken compass, the journal, the voice that called his name in the dark—all of it pointed to the same place.

“Find your brother,” Émile said slowly, “and we find the door. Is that the bargain?”

Karl’s lip curled. “I don’t make bargains with Frenchmen.”

“Then you make one with a chaplain.” Brandt stepped forward, brushing dust from his cassock. “These men saved my life. Your brother trusted me with his journal. And somewhere beneath us, the machine at the heart is still ticking. If we do not find it, every tunnel from the sea to the Vosges will collapse. Your men. Mine. The wounded. All of them.”

Karl stared at Brandt. Somewhere in the distance, a shell shrieked, and the ground shuddered. Through the broken roof, Émile saw a plume of black smoke rise from the German lines.

“One hour,” Karl said finally. “We bury our dead and split what supplies we can find. Then we go down together.” He looked at Émile, and his eyes were hard as flint. “But if you betray me, Frenchman, I will bury you so deep that even the angels won’t find your bones.”