Read Chapter 6: Ruins

The first shell tore through the rear of the trench thirty metres from Émile's position. The ground bucked like a struck animal, and a shower of chalk and timber rained down. Men screamed somewhere in the smoke. Émile was on his feet before he understood he had moved, his pickaxe still slung across his back, mud caking his eyelids.

"Marchand! With me!" Sergeant Duret's voice cut through the ringing in his ears. "Support line's gone. We hold the crater."

Émile grabbed the nearest coil of wire and followed. The trench had become a broken spine of collapsed sandbags and splintered duckboards. Bodies lay half-buried, some still breathing. He stepped over a boy from the 73rd whose leg ended at the knee, pressed cloth into the wound without stopping, kept moving.

The crater was a steaming bowl of churned earth the size of a barn. Germans would come for it within the hour—they always did. Émile's section dropped into its lip, shovels and picks already swinging, scraping out firing positions from the wet chalk. Above them the sky tore open again. More shells. These landed short, behind them, isolating the crater from the rest of the French line.

"Christ," muttered Claude, his loader. "We're cut off."

Duret spat. "Then we dig harder."

They dug. For three hours they scraped and hauled while the barrage walked back and forth across no man's land, severing every approach. The Germans did not come. Perhaps they were pinned too. Perhaps the shells were for them as well. Émile's hands blistered through his gloves, and every swing of the pick sent a shock up his arms that met the bruise on his ribs where the timber had struck him in the tunnel.

When the barrage finally lifted, the air was thick with chemical smoke and the stench of burnt powder. Duret counted heads. Eleven of them, including Émile. Their trench was gone, their wire gone, their telephone line severed. The crater was a small island in a grey sea.

"Billets are that way," Duret said, jerking his thumb north-west. "We move at dusk."

They moved at dusk. Single file, weapons low, hugging the folds of the ground. The landscape was unrecognizable—every hollow, every copse, every landmark erased and redrawn. They passed a German helmet and a French boot lying side by side, the mud already claiming both. Then the ruined château rose out of the gloom like a broken tooth.

It had been a grand place once, Émile could see that much. The façade was gone, but the stone walls stood three storeys high in places, skeletal and defiant. A collapsed wing sprawled to the east. The roof had fallen inward. It was the kind of ruin both armies used for sniper nests and observation posts, and it was empty now—or appeared so.

Duret sent two men forward. They cleared the ground floor, then the remnants of the first. No Germans. No booby traps. No fresh tracks in the dust that lay thick over the shattered tiles.

"Post sentries," Duret ordered. "We sleep in shifts. Marchand, you and Claude take the cellars—make sure nothing's down there that'll bite."

Émile nodded. He slung his rifle and descended the stairs at the west end of the house, Claude following with a shaded lantern. The steps were worn smooth, concave from centuries of feet. At the bottom, a stone corridor ran east, lined with rusted wine racks and a collapsed shelf of preserves. Claude swept the lantern left and right.

"Nothing here," Claude said. "Just rats and old dust."

Émile did not answer. He was looking at the wall.

The plaster had fallen away in a long sheet, exposing what lay beneath: rough-cut stone, fitted with a precision that was not natural. And cut into that stone, a pattern—a spiral of interlocking circles, worn at the edges but unmistakable. He had seen the same pattern less than a week ago, scratched into the wall of the tunnel beneath German lines, moments before Félix's leg had been crushed.

"Claude. Bring the light closer."

The lantern swung. Claude saw the carving and went quiet.

"What is it?" he asked finally.

Émile ran his fingers over the cuts. Deep. Ancient. The stone was not the local chalk—it was a darker rock, veined with quartz, dense as iron. It did not belong in the cellar of a French château. It belonged underground, in the deep.

"Same marks," Émile said. "The tunnel. The one I found."

"That's impossible. This is a house."

"Not the house." Émile stepped back, tracing the wall upward. The plaster had been stripped in places, and behind it, the dark stone continued. "The house was built on top of something older."

He moved along the wall, brushing away dust and debris. Near the far corner, where a collapsed shelf had shielded the wall from weather and shrapnel, he found more carvings—lines of them, forming not spirals but letters. Roman capitals, deeply chiselled, filled with a pigment that had faded to the colour of dried blood.

Claude read aloud, his lips moving slowly. "Built by the Templars. Anno Domini—something. Can't make out the date."

"The Templars." Émile heard his own voice as if from a distance. His father had told him stories, long nights in the cottage above the mine, the fire low, the wind rattling the shutters. Not fairy tales—histories. The old man had been proud of them, the family legend.

"The Marchands dug for God before they dug for coal," his father used to say. "We were in the south then, in the pays du soleil. Working the quarries for men in white cloaks who paid in gold and asked no questions. They said the stone ran deeper than the sea. They said there was a city under the earth, older than the flood, and that the Templars were its guardians. Our family kept the secret. It passed down father to son, and it will pass to you."

Émile had laughed at that, a boy's laugh, and asked where the treasure was. His father had cuffed him gently and said the treasure was not gold. The treasure was the way.

"The way," Émile whispered now.

"Way to what?" Claude asked.

Émile did not answer. He was on his knees, scraping at the floor where the flagstones met the carved wall. The dust was thick here, but beneath it he found a line, a hairline crack that ran the full length of the cellar—a cut that was too straight to be mortar. He dug his fingers into it and pulled. A flagstone shifted. Not by much—an inch, maybe two—but it moved.

"Help me."

Claude crouched beside him, not asking questions now. Together they pried at the stone. It was heavy, a slab of the same dark rock as the wall, and it slid sideways with a grinding sound that was too smooth, too controlled. Beneath it, a void opened. Cool air rose from it, carrying a smell Émile knew from the tunnel: wet stone, ancient salt, and something else. Something like ozone, like the air after lightning.

Claude held the lantern over the hole. Below them, a staircase descended into darkness, cut from the living rock. The steps were worn, but not by water. They were worn by feet.

"Jesus," Claude breathed.

Émile looked up at the inscription one more time. *Built by the Templars.* His father had died not knowing—had gone to his grave believing it was legend. But the stone was real, and the work beneath the stone was real, and a German deserter had written of a buried city with a humming light at its centre. The same city the German army was digging toward from their side. The same city Émile was supposed to bury with six hundred kilos of ammonal.

He lowered himself onto the first step. The air was cold, and from somewhere far below, very faint, he heard it.

Tap. Tap-tap. Tap.

The rhythm was even, deliberate. It was not German. It sounded like a question.