Read Chapter 17: The Chase

The heat from the tunnel wall was still burning through Mack’s jacket when the first flashlight beam cut through the darkness behind them.

“There!” a voice shouted. “They went down the maintenance spur!”

Mack grabbed Elena’s wrist and pulled her into a crouch behind a stack of rusted signal boxes. His lungs were raw from the sprint through three stations, and the fragment in his pocket seemed to pulse with a low, humming warmth against his thigh, like it was alive, like it knew they were being hunted.

“How many?” Elena whispered, pressing her back against the grimy concrete.

“More than two,” Mack said, peering through a gap between the boxes. Four figures in dark jackets were moving down the platform above them, their flashlights sweeping in methodical arcs. They weren’t fumbling. They knew this network. “They’re cutting off the exits. If we go back the way we came, we hit the flooded section.”

“So we go forward.”

“The old Bronx line dead-ends at the demolished terminal. There’s nowhere left to run.”

Elena’s face was streaked with dirt and grime, her dark hair plastered to her forehead with sweat. She still had that stubborn set to her jaw that Mack had come to recognize over the past weeks—the look that said she wasn’t going to let him make this decision alone.

“Then we don’t run,” she said. “We hunt.”

Mack blinked. “You want to go after them?”

“No,” she said, already moving. “I want to make them think we did.”

She ducked low and scurried along the wall, kicking a loose chunk of concrete down the maintenance spur. It clattered and echoed, disappearing into darkness. One of the flashlights swung hard toward the sound.

“They’re running for the drain line!” the same voice called. Boots pounded overhead as the figures split—two heading toward the spur, two sweeping wide.

Mack had no choice but to follow Elena. She moved with a speed born of familiarity, navigating the dark spaces between tunnels as if she’d spent her whole life down here. Maybe she had. He still didn’t know the full extent of her past with the Gatekeepers, only what she’d chosen to tell him.

“There,” she said, pointing to a narrow service ladder bolted into the wall. It led up to a catwalk that crossed over the main line. “They’ll expect us to stay low. Let’s go high.”

Mack grabbed the rung and climbed. The catwalk was rusted, groaning under his weight, and he moved as fast as he dared while keeping his footsteps silent. When they reached the midpoint, he glanced down and saw one of the hunters below—a stocky figure in a waxed canvas coat, flashlight held low like a weapon.

And on his wrist, just visible where the sleeve had ridden up, was a tattoo.

Mack’s heart stopped.

A coiled serpent, its mouth open, fangs bared, wrapped around a faded blue anchor. The same tattoo he’d seen on Salazar’s men the night they’d escorted him to the Old Oyster Bar. The same ink on the bouncer’s forearm at the trap door beneath the collapsed bakery.

These weren’t the Warden’s Society enforcers.

These were the Gatekeepers.

“Mack, keep moving,” Elena hissed.

But he couldn’t look away. The man below paused, tilting his head as if he sensed he was being watched. Then he turned, and the light swept up, finding Mack frozen on the catwalk.

“He’s up there!”

The shouting started. Flashlight beams converged. Mack shook himself out of the paralysis and sprinted across the catwalk, grabbing Elena’s hand as they reached the other side. They dropped down into a utility alcove just as bullets sparked off the steel behind them.

“What’s wrong?” Elena demanded, pulling him forward. “You froze back there.”

“The tattoo,” Mack panted. “On his wrist.”

“What about it?”

“It’s Salazar’s mark. These are Gatekeeper men. Your people.”

Elena’s stride faltered. “That’s not possible.”

“I saw it. Same coil, same anchor. I’m not wrong.”

For a split second, she looked genuinely lost. Then her expression hardened. “Then someone’s wearing a copy. Or Salazar has men he hasn’t told us all about. We can work that out later. Right now we need to lose them.”

They burst out of the alcove into a wider underground chamber—an old turnaround loop where trains had once reversed direction. The tracks were overgrown with weeds and littered with debris. A torn billboard advertising a long-defunct department store loomed overhead.

And at the far end, a tunnel mouth with no track, just a concrete throat disappearing into blackness.

“That leads to the old Boston Post Road line,” Elena said. “It’s closed. Blocked. But there’s a shelter entrance about half a mile up. The homeless sometimes use it.”

“The shelter?”

“They won’t follow us into a public space. Too many witnesses.”

Behind them, boots clattered on the catwalk. Shouted orders echoed through the chamber. Mack made a decision.

“Go. Now.”

They ran. Through the tunnel mouth, down a pitch-black passage where the only light came from Mack’s headlamp. Elena stumbled once, then again, and Mack caught her arm—his hand came away slick. Blood.

“You’re hit.”

“It’s nothing. Leg. Grazed. Keep moving.”

He wanted to stop. Wanted to check the wound. But the sounds of pursuit were getting closer, and he could hear the heavier breathing of men who knew they were closing in.

They reached a steel door with a telltale streak of rust running down its face—the kind of door that had been forced open years ago and never properly sealed again. Mack shoved it, and it gave way with a groan of protesting hinges.

Moonlight spilled in. And beyond it, the faint hum of the city above.

They emerged into a narrow service alley between two condemned buildings. The shelter was just visible at the end of the block, a converted warehouse with a single sign above its entrance: BOWERY MISSION, WELCOME ALL.

Mack pulled Elena behind a dumpster, pressing a hand to her leg. The wound was ugly—a crease along her outer thigh, still bleeding freely.

“You’re going to need stitches.”

“I’ll live,” she said through gritted teeth. “There’s a woman inside. Old lady they call Mother. She used to patch up more than my grandfather.”

Mack’s head snapped around. “You know someone here?”

“Doesn’t everyone know someone who fell too far down and found their way back up?” Elena’s laugh was pained, thin. “Mother was a Keeper. A long time ago. She doesn’t take sides anymore. But she’ll help.”

Mack peered down the alley. The tunnel door had already swung shut, and there were no sounds of pursuit. But that didn’t mean they weren’t watching from a distance.

“The fragment,” he muttered, patting his jacket pocket.

It was gone.

His blood turned cold. He patted down both pockets, checked the inner liner, ran his hands over his shirt. Nothing. The fragment was gone.

And then he remembered—the masked man who had lunged at him in the maintenance tunnel, the one who had grabbed his wrist. He’d thought the man was trying to pull him off balance. But he’d been taking the fragment.

“Mack?” Elena’s voice was sharp. “What’s wrong?”

“He took it. During the chase. That masked guy—the one with the tattoo—he lifted the fragment right out of my pocket and I didn’t even feel it.”

Elena stared at him. The implications settled between them, heavy and dark.

The Gatekeepers had stolen the piece of the Key that they’d sent Mack to retrieve in the first place. Either the fragments were being quietly reclaimed by the very people who’d entrusted him with the quest—or someone inside the Gatekeeper ranks had never intended him to succeed.

Mack helped Elena up, wrapping his arm around her waist as they staggered toward the shelter door.

“I’m going to need to ask Salazar about his tattooed friends,” Mack said quietly.

“And you think he’ll give you a straight answer?”

“No,” Mack admitted. “But that’s what questions are for. To see how people lie.”

Elena said nothing to that. Which, in its way, was an answer too.