Read Chapter 28: The Fortress in the Clouds

The fortress rose out of the dawn mist like a cathedral carved from storm clouds and iron. Elias stood at the helm of the *Vagabond II*, knuckles white on the wheel, watching the massive structure grow from a distant silhouette into a looming impossibility. Cannon batteries studded its flanks in concentric rings, each one tracking unseen skies with mechanical patience. Between the fortress and the mainland stretched a narrow canyon of rock and floating debris—the only approach that didn't put them in direct line of the heavy guns.

Amelia stood at his elbow, her voice low and precise. "The gap patrols change in less than two hours. The weak spot is in the lower eastern quadrant, where the rock formations interfere with their acoustic targeting arrays. You'll need to hug the canyon wall so tightly your paint scrapes."

"Acoustic arrays," MacReady muttered from the gun deck below. "Bloody French and their clever toys."

Elias didn't take his eyes off the approach. "How do you know this?"

"Because I helped design the patrol schedule." Amelia's voice carried no pride, only flat fact. "Six months ago, I was trusted enough to map their defensive rotations. The fanatics changed some of it when they took over, but the canyon interference is a physical limitation. They can't fix it without rebuilding the entire eastern wall."

Sable appeared at Elias's side, her dark eyes scanning the fortress with professional wariness. "She could be feeding us into the worst of it."

"She could be," Elias agreed. "But she's also the only one who's been inside." He glanced at Amelia. "If this is a trap, you know what happens."

Amelia met his gaze without flinching. "I know."

The canyon swallowed them. Rock walls rose on either side, streaked with mineral deposits that glittered in the weak morning light. The *Vagabond II*'s gas envelope creaked as Elias maneuvered her closer to the eastern wall, the hull groaning in protest. He could see the gun emplacements now—hulking iron beasts recessed into the rock, their barrels swiveling in slow, mechanical sweeps. But Amelia was right. Near the canyon floor, where the rock formations jutted out in jagged spires, the guns' movements became erratic, their tracking systems confused by the acoustic chaos.

"Now," Amelia said. "Cut thrust and let the wind carry us."

Elias killed the engines. The sudden silence was deafening, broken only by the whisper of wind through rigging and the distant rumble of the fortress's internal mechanisms. The *Vagabond II* drifted forward, close enough that Elias could have reached out and touched the rock wall. A gun emplacement loomed ahead, its barrel tracking wildly, searching for a target that its sensors couldn't lock onto.

Hollis's voice came from the crow's nest, barely a whisper. "Twenty yards to the gap."

Elias held his breath. The gun barrel swept past them, missing by inches. Then they were through, sliding into a narrow cleft in the fortress's defenses, and the canyon opened into a vast interior harbor.

It was like entering another world. The fortress's hollow heart contained a floating basin large enough to berth a dozen airships, ringed by docking gantries and darkened warehouses. At the center of the basin, suspended from massive chains that vanished into the fortress's upper reaches, hung a structure that made Elias's blood run cold.

The meteor was there, or what he assumed was the meteor—a massive sphere of black iron, covered inarcane markings that pulsed with a sickly green light. It hung in the center of a lattice of support beams, surrounded by a shimmering field of energy that crackled with contained lightning.

"God help us," MacReady breathed.

Elias tore his gaze away. "We need to land. Quietly."

They brought the *Vagabond II* down in the shadow of an abandoned warehouse, the mooring lines swallowed by darkness. Elias gathered the crew in the cargo hold, the five petard shells laid out on a tarp between them.

"Amelia and I will take the petards to the meteor chamber. MacReady, Sable, you're our backup. Hollis, stay with the ship—if we don't come back in two hours, you take her out and don't look back."

Hollis's jaw tightened, but he nodded. "Understood, Captain."

Elias strapped the petard shells to his back, feeling their weight settle against his shoulders. Amelia did the same with two of them, leaving one for MacReady and one for Sable. They moved through the fortress's lower corridors in silence, following Amelia's sure-footed guidance through maintenance tunnels and abandoned servant quarters. The sounds of the fortress—marching boots, mechanical whirring, distant orders barked in French—grew louder as they approached the central chamber.

Then the alarms began.

The sound was a piercing mechanical shriek that seemed to come from everywhere at once. Amelia froze, her face going pale. "They know."

"How?" Elias demanded.

"The acoustic arrays. The gap patrols must have flagged us before we landed. They were waiting."

A squad of French soldiers burst from a side corridor, rifles raised. Elias didn't hesitate—he dropped into a roll, drawing his pistol and firing in one fluid motion. The first soldier went down, clutching his shoulder. MacReady's boarding ax flashed as he charged into the fray, and Sable followed, her knives a blur of steel.

But there were more. Always more. They poured from the corridors in a tide of blue coats and gleaming bayonets, and Elias found himself back-to-back with MacReady, surrounded in the narrow passage.

"We need to fall back!" MacReady shouted, parrying a bayonet thrust.

"There's nowhere to fall back to!" Elias fired two more shots, dropping another soldier. "Sable, the door!"

Sable was already moving, her slim fingers working the lock on a heavy iron door to their left. It groaned open, revealing a dark stairwell spiraling upward. She ducked inside, and Elias followed, MacReady covering their retreat with a savage swing of his ax that sent two soldiers stumbling back.

The door slammed shut behind them, and Elias slammed the bolt home. Through the iron, he could hear the soldiers pounding, shouting orders.

"Stairs lead to the meteor chamber," Amelia said, already climbing. "But they'll cut us off. We need to move faster."

They climbed. The stairs spiraled endlessly, the sounds of pursuit growing louder below as the French soldiers found another route. Elias's lungs burned, the petard shells digging into his shoulders. Behind him, MacReady's breath came in ragged gasps, and Sable moved with the fluid grace of a predator, her knives still in her hands.

They burst onto a wide platform overlooking the meteor chamber. The sphere hung below them, its arcane markings pulsing with that sickly green glow, the energy field crackling around it. But between them and the sphere stood a solid line of French soldiers, rifles raised, an officer in ornate uniform at their head.

"Captain Thorne," the officer said, his voice carrying across the chamber. "We've been expecting you. The navigator's betrayal was always part of the plan."

Elias's blood turned to ice. He looked at Amelia, who had gone very still.

"What does he mean?" he demanded.

Amelia didn't meet his eyes. "I told you. The fanatics diverted the convoy. But I didn't tell you everything."

The officer smiled. "She didn't tell you that she's been working for us all along. The meteor will be tested on London as planned—and you and your crew have delivered the final component we needed."

He pointed at the petard shells strapped to Elias's back.

"Those shells contain a chemical compound our engineers couldn't replicate. You've brought us the means to complete the weapon. Congratulations, Captain. You've just armed the very device you came to destroy."

The soldiers raised their rifles. Elias stood frozen, the weight of the shells on his back suddenly feeling like the weight of the world.