Read Chapter 1: Silent Depths

The alarm cut through the roar of the turbine like a knife. High, urgent, the station's emergency klaxon was a sound Jack Mercer hadn't heard in person for over a decade, and the memory of it iced his blood before his brain even registered the code.

Repair dive 4-7 Charlie was a busted repeater ten miles off the ADRS umbilical. Routine. A hundred and sixty feet down, the water a bruised twilight, he'd been re-seating a data junction when the ringing in his ears had shifted from the low drone of the support vessel's engines to something sharper, more frantic. The ROV's tether, a fat umbilical glowing with diagnostic lights, pulsed red in the murk.

He looked at the line. His own, clipped to the cable, vibrating with a tremor that wasn't natural. The seabed here was volcanic, but this was a different kind of shake.

On the surface, he knew, the comms suite would be a chaos of screaming. But down here, it was just him and the silent, shuddering cable in a world of black water. He finished the clamp with a practiced, gritted-teeth efficiency. He'd lost a man to a seizure of the deep once. You learned to finish the job, to secure your own line, before you looked for the trouble.

His breathing was too fast. He forced it down, watching his O2 gauge stabilize. The klaxon was a speaker in his helmet, patched through from the boat. It was loud enough to make his head ache.

"Mercer, surface. Secure your ops and ascend. Now." The voice was hard, clipped. The captain of the *Halcyon*, a man who'd never wasted a word in his life.

"What's the code?" Jack let the question hang. He knew the code, but he wanted to hear it.

"Abandon platform," came the reply, after a beat. "ADRS. They've tripped the thing themselves."

The Atlantic Deep Research Station. A ghost of a thought surfaced—his brother's grin, wide and reckless, framed by the ten-foot-thick viewport of a submersible. That was the last he'd seen of it. The station proper, a spider on the seafloor, resting its legs on the sediment.

He was already kicking for the surface, his ascent line tugging him upward in a practiced spiral. "Platform's a stationary. What the hell's it abandoning?"

"No signal since the mayday. Two minutes of it, then cut off. Then nothing. Their emergency transponder is dark. All of them."

"Did you get any of the ping? Even a text burst?" Jack asked, the water rushing past his faceplate as he rose. He hated the surface. Hated the light. Down here, things were honest. Focused.

"Just the standard array. I'll send you the file. Mercer… you were scheduled for shore leave after this run."

"Fuck shore leave." The words bubbled out of him as he broke the surface, the sky a gray sheet of rain that wasn't in the forecast. He spat his regulator out and swam for the ladder.

---

On the *Halcyon's* deck, the world was organized noise. Men in orange coveralls hauled his gear, the ship's crane already swinging. The captain, a man named Reyes with a face like a cliff, was pacing the bridge deck, a tablet clutched in his hand. When Jack, stripped to the waist and dripping, climbed onboard, Reyes didn't look up.

"I said secure ops," Reyes said flatly.

"I got it. The clamp's good. The line's stable." Jack grabbed a towel from a crewman, rubbing the salt water from his face. "Now, what the hell is this?"

Reyes finally looked up, and Jack saw the confusion there, the crack in the old man's armor. "Mayday came from the station's chief administrator. Doctor Elena Vance. Talked for thirty seconds."

"About what?"

"Doesn't matter much." Reyes turned the tablet. The screen showed a spectral waveform, a chunk of audio frozen into a visual jag. "The signal cut out before she could say anything coherent. The final packet we got was the automated mayday, and the text burst that came with it."

"What's the burst say?"

Reyes scrolled. A single line of text, stark and terrible on the screen, glowed back at him.

[ WE ARE SAFE. DO NOT SEND HELP. ]

Jack stared at it. The cold from the water was nothing compared to the chill that settled in his guts. He knew the protocols for a station distress call. They were drilled into every diver and every support captain. There were only three official messages: Distress, Mayday with coordinates, and a final automated system purge. A text saying "safe" wasn't one of them. The automated purge would have wiped the entire station's memory. It was the last resort, the "everything is lost, drown the data" button.

"Who sends that?" Jack said softly.

"That's what I'd like to know." Reyes's eyes were dark. "The station's offline. All comms, all instruments, all life support telemetry. The ROV's that can reach it from here are in a hangar on the other side of the ocean, or on a ship three days away. The only way we're getting there in time is if you take a sub down."

"Take a sub where?" Jack asked, even as he felt the weight of it pressing on him.

Reyes nodded at his tablet. "The station sits on the edge of a trench they've been drilling. They call it 'The Scar' internally. It's a deep excavation site. Work had been ongoing for a year. They've been pulling up cores of some kind of black sediment. It was going okay, then the comms went dead." He paused. "Before her mayday, we got one regular datalink burst from Dr. Vance, logged four hours prior. It's just a distress code."

"Just a distress code," Jack repeated, his mind already churning. The watch on his wrist—a cheap digital thing—was set to station time. It was a habit he'd never shaken. A ghost of his brother, of a different station, a different distress call.

"You've got history with the Atlantic Deep," Reyes said, not a question. "Your brother… he was on the Tandy's team, wasn't he?"

The Tandy. The name felt like a punch to the sternum. The *Tandy*, a drilling rig three hundred miles south, gone silent eighteen years ago. The official report said a catastrophic structural failure. There were no survivors, no bodies, just a twisted wreck on the seafloor and a file stamped "incident closed." Jack's brother, Luke, had been down there. He'd been part of the crew that worked the excavation front.

But Jack didn't believe in the official report. The station had been fully operational, fresh supplies, no seismic activity in their sector. It was his first dive, his first deep-water repair job. He'd pulled on the same kind of rig for a year, and he'd listened to the comms channels, the dark whispers between divers who knew the truth. The *Tandy* wasn't an accident. It was gone. And the thing it had been digging up… they'd never found the core sample.

"Yeah. He was." Jack's voice was flat. He didn't talk about Luke. Not with captains, not with crewmates. But the *Tandy* was pressing on him now, a weight in the back of his throat. A frantic, garbled mayday cut off by a wall of static. A single, garbled word at the end, repeated over and over until the signal bled out into the abyss.

That word, he’d heard in his nightmares for years. It hadn't been a word at all. It had been a scream.

"Then you know the kind of silence you're talking about," Reyes said. "I'm not asking you to go down there. I'm telling you I have assets, a one-man submersible that can reach the station's lab module in about five hours if you run the currents right. It's a prototype, an engineering test bed. But it'll get you there before anyone else can."

"And if I don't go?"

"Then I read a report that lists a station as 'non-responsive' and mark it for salvage assessment. In a week, a recovery team will go down, cut the anchors, and drag whatever's left to the surface. They'll do it from a safe distance, with ROVs. Nobody's going to put a person in that water, Jack."

The words hung there. A decade of silence from a brother he'd told himself he was done mourning. But the word—that garbled "safe"—echoed in his head. Something had said "safe" from the *Tandy*, too. And then it was gone, and nothing about that station was safe.

He looked at the tablet, at the screen showing the text burst. He thought of the cold, black water pressing against the ADRS's hull, a hundred and twenty feet of it above the structure, and the dark trench called The Scar yawning below.

"Five hours," Jack said, the word tasting like grit. "Load the sub. I need the schematics for the lab module and the excavation site."

Reyes gave a single, sharp nod. "I'll have 'em for you in the hangar. Mercer…"

But Jack was already walking, dripping salt water across the deck, leaving the captain and his questions behind. His brother's face was gone from his mind, replaced by the memory of a watch. Luke's watch. The brass one with the cracks in the face he'd never taken off. It was in a locker in Jack's quarters, a thing he'd never had the courage to throw away, a thing he kept as a reminder of the day pragmatism met the deep and lost.

Maybe it was time to give that watch another job.