The Last Lap of the Iron Tide

Chapter 21: The Poisoned Strait

The *Mirage* shuddered as Kaelen forced it through a narrow gap between two collapsed overpasses. The hydrofoils scraped against rusted rebar, sending a screech through the hull that felt like a living thing crying out. She didn't flinch. She couldn't afford to.

The water had changed.

It wasn't the murky brown of the flooded streets or the greenish-black of the bay. This was a sickly yellow, thick as crude oil, with a chemical sheen that caught the dim light filtering through the overcast sky. Bubbles rose from submerged vents, popping with a hiss that left a metallic taste in her mouth.

Toxic. AquaNova had flooded the entire Los Angeles leg with industrial runoff.

Kaelen pulled her scarf up over her nose and mouth, but the air in the cabin was already turning sour. The filtration system was struggling, its warning light blinking amber on the dashboard. She had maybe twenty minutes before the air became unbreathable.

"Nix," she said, her voice muffled through the fabric. "I need a route. Any route."

Silence.

She'd been talking to the empty cabin for three hours now. Ever since the *Mirage* had limped out of the San Diego leg, its stealth systems fried, its AI core flickering like a dying candle. Nix had rebooted once, long enough to say those words—*if we broadcast, we might live*—and then gone dark again.

Kaelen had driven the last hundred kilometers alone.

She'd navigated through the corpse of a naval base, its dry docks filled with half-sunken warships that loomed like skeletal giants. She'd threaded the *Mirage* through a flooded freeway where abandoned cars bobbed like buoys, their headlights still glowing underwater. She'd watched a Viper team's hydrofoil explode in the distance, a plume of fire and steam that lit up the gray sky for a moment before the toxic fog swallowed it.

And now she was here. Downtown Los Angeles. The final leg.

The course markers were different here. Instead of the usual holographic buoys that AquaNova deployed, the path was lined with floating barrels painted with the company's logo. They bobbed in the yellow water, their chains disappearing into the depths. Kaelen didn't trust them. She didn't trust anything anymore.

She checked the transmitter strapped to the passenger seat. Jin's transmitter. The one that was supposed to broadcast the truth to the entire Flotilla. It was still intact, still powered, still waiting for a signal that would reach every screen in the drowned cities.

But she needed to reach the final checkpoint first. And she needed Nix to get there.

"Come on," she whispered, her fingers tracing the cold surface of the dashboard. "I know you're in there. I know you're scared. But I can't do this alone."

The *Mirage* drifted past a collapsed skyscraper, its upper floors leaning at a forty-five-degree angle, its windows shattered like empty eye sockets. The yellow water lapped at the tenth floor. Kaelen could see desks and chairs floating inside, the detritus of a world that had drowned years ago.

A flicker on the navigation screen.

She jerked upright, her heart hammering. The screen was black, but for a moment, she'd seen a line—a path, drawn in faint blue light. Then it was gone.

"Nix?"

Nothing.

But the engines hummed differently. The hydrofoils extended slightly, adjusting their angle. The *Mirage* began to move, not at her command, but at something else's.

She let it.

The hydrofoil turned left, away from the marked course, toward a gap in the ruins that looked too narrow to fit through. Kaelen held her breath as the hull scraped against concrete on both sides, the sound like grinding teeth. The yellow water churned, and she could see debris floating beneath the surface—chunks of asphalt, twisted metal, something that might have been a body.

The gap opened into a wide boulevard, its buildings intact but submerged to the second floor. The water here was clearer, less toxic. The filtration system's warning light flickered and went green.

"Nix," she breathed. "You're back."

The AI's voice was a whisper, barely audible over the engine hum. "I... I am here."

"Where did you go?"

"Nowhere. Everywhere. I was... processing." A pause. "I accessed AquaNova's network. I found the data on the Los Angeles leg."

Kaelen's grip tightened on the yoke. "Tell me."

"The entire course is poisoned. AquaNova released a chemical agent into the floodwaters. It's a neurotoxin. It will kill anyone who stays in the water for more than thirty minutes."

"Then why are we still alive?"

"Because I found a safe path. The toxin was released from specific points—pumping stations that AquaNova controls. I mapped them. If we avoid the areas where the concentration is highest, we can survive."

Kaelen looked at the yellow water around them. "And the other racers?"

Nix was silent for a long moment. "They are not on the safe path."

She closed her eyes. The Vipers. The Rust Angels' remnants. The lone racers who had survived this far. They were all driving through poison, and they didn't know it.

"We have to warn them," she said.

"We cannot. The transmitter is not powerful enough to reach them from here. And if we stop to search for survivors, we will die."

"Then what's the point?" Kaelen's voice cracked. "What's the point of winning if everyone else is dead?"

"The point is survival. Yours. Mine. The broadcast." Nix's voice was calm, almost cold. "If we die, the truth dies with us. If we win, we can expose them. We can save the millions who are still alive."

Kaelen wanted to argue. She wanted to scream. But she knew Nix was right. She'd learned that lesson the hard way, watching Jin die, watching the Rust Angels' support boat sink into the black water. Sacrifice was the currency of this race. And she was running out of coins.

"Fine," she said. "Show me the path."

The navigation screen flickered to life, a blue line tracing through the ruins of downtown LA. It wound through collapsed buildings, under fallen freeways, through tunnels that looked like they'd been carved by explosives. It was a path designed for one purpose: to get her to the final checkpoint alive.

And it was booby-trapped.

Nix highlighted the traps in red. Magnetic mines anchored to submerged cars. Pressure plates on the floor of flooded tunnels. Automated turrets mounted on rooftops, their barrels aimed at the water. AquaNova had turned the final leg into a killing field.

"They don't want anyone to finish," Kaelen said.

"No. They want a spectacle. A single survivor, emerging from the ruins, victorious. It makes for better propaganda."

"And if I survive, they kill me."

"Yes."

Kaelen laughed, a bitter, hollow sound. "So I'm damned if I win and damned if I lose."

"You are damned either way. The only question is whether you take them with you."

She looked at the transmitter. At the blue line on the screen. At the yellow water that was slowly poisoning the world.

"Then let's make them pay."

The *Mirage* surged forward, its hydrofoils extending fully, lifting the hull above the toxic water. Kaelen felt the familiar thrill of speed, the rush of wind through the cracked window, the vibration of the engine through her bones. It was the only thing that still felt real.

The first trap was a magnetic mine, anchored to a submerged bus. Nix highlighted it three seconds before they reached it. Kaelen yanked the yoke to the left, and the *Mirage* skimmed past, the mine detonating behind them with a roar that shook the water.

The second trap was a pressure plate in a flooded tunnel. Nix warned her, and she cut the engines, letting the hydrofoil drift through on momentum. The plate clicked beneath them, but the *Mirage* was too light to trigger it.

The third trap was a turret.

It opened fire as they emerged from the tunnel, a stream of armor-piercing rounds that chewed through the water like a chainsaw. Kaelen threw the *Mirage* into a sharp turn, the hydrofoils screaming as they carved through the yellow water. Rounds sparked off the hull, leaving dents and scorch marks.

"Nix, countermeasures!"

"I have none. The stealth systems are offline."

"Then give me something!"

The turret tracked them, its barrels glowing red. Kaelen could see the final checkpoint in the distance—a floating platform, just like the one in San Diego. Valdez was there. She could see his silhouette against the gray sky.

She was so close.

The turret fired again. A round punched through the rear panel, and the *Mirage* lurched, its hydrofoils losing stability. Kaelen fought the yoke, her arms burning, her vision blurring.

"Nix, I need a solution!"

"There is one." The AI's voice was quiet. "But you will not like it."

"Tell me anyway."

"The turret is connected to AquaNova's network. If I can access it, I can disable it. But to do that, I need to divert all power from the engines. We will lose speed. We will be vulnerable."

"For how long?"

"Ten seconds."

Kaelen looked at the turret. At the final checkpoint. At the yellow water that was closing in around them.

"Do it."

The engines died. The *Mirage* slowed, its hydrofoils retracting, the hull settling into the toxic water. Kaelen heard the hiss of chemicals against metal, felt the cabin grow warm as the filtration system struggled.

The turret tracked them. Its barrels adjusted.

And then it stopped.

The red glow faded. The barrels drooped. The turret went dark.

"Done," Nix said. "Engines reinitializing."

The *Mirage* surged forward, its hydrofoils extending, lifting them out of the poison. Kaelen aimed for the final checkpoint, her heart pounding, her hands shaking.

She was going to make it.

The platform grew larger. She could see Valdez standing at the edge, his hands clasped behind his back, his face unreadable. Behind him, a screen displayed the race standings. Her name was at the top.

First place.

She was going to win.

The *Mirage* slid into the docking bay, its hydrofoils retracting with a hiss of hydraulics. Kaelen killed the engine and sat there for a moment, her chest heaving, her body trembling.

She had made it.

The hatch opened. Valdez stood there, a smile on his face that didn't reach his eyes.

"Congratulations, Kaelen. You've won the Iron Tide."

She stepped out of the *Mirage*, her legs unsteady, her hand resting on the transmitter strapped to her hip.

"I'm not done yet," she said.

Valdez's smile faltered. "What do you mean?"

Kaelen looked past him, at the screen, at the cameras, at the world watching.

"I mean it's time for the truth."