OPERATION GHOST RIG

THE ECHO OF GHOST RIG

The hum wasn't the submarine.

It was coming from inside the ship.

Elias felt it first in his boots—a low, rhythmic vibration that didn't match the Halcyon's engines. It pulsed through the deck like a heartbeat, faint but growing. He stopped mid-stride in the corridor, his hand going to the wall. The metal was warm.

"Jesus," he said. "You feel that?"

The big man paused, his head tilted. "Machinery. But not the ship's."

They moved toward the source. The sound led them down, past the medical bay, past the sealed lower decks, toward the auxiliary engine room. The corridor lights flickered as they walked, the hum now audible—a deep thrum that vibrated in Elias's chest.

Reyes met them at the hatch. Her uniform was torn, her face smeared with grease and blood. She held a flashlight in one hand and a pistol in the other.

"One of my engineers reported it," she said. "A device, mounted on the hull. It wasn't there before the attack."

"A bomb?" Elias asked.

"I don't think so. It's transmitting." She pushed open the hatch.

The auxiliary engine room was cramped, filled with pipes and gauges. In the corner, near the outer bulkhead, a black box the size of a suitcase was bolted to the wall. A single red light blinked on its surface.

"That's it," Reyes said. "We've been trying to remove it, but it's welded on."

Elias knelt beside the device. It was smooth, featureless except for the blinking light. The hum was loud here, almost painful.

"It's a beacon," he said. "Broadcasting our position."

"To the submarine," Jesus said.

Reyes nodded. "That's my guess. We need to destroy it."

She raised her pistol. Elias caught her wrist. "Wait. If it's a beacon, it might be rigged. Tamper-proof."

"Then what do you suggest?"

Elias studied the device. There was a seam along its edge, a thin line where the casing met the wall. He pulled a knife from his belt and worked the tip into the seam.

"Get back," he said.

The others stepped away. Elias pried the casing open. Inside, a tangle of wires and a small circuit board. The red light blinked faster, as if sensing the intrusion.

"It's got a receiver," he said. "Remote detonation."

"Can you disarm it?" Reyes asked.

"I can try." Elias reached for the wires, then stopped. "But if I cut the wrong one, we all go up."

A voice crackled through the ship's intercom. Not the submarine's. This one was closer. Asher's.

"I wouldn't do that, Mr. Vance."

Elias's hand froze. The intercom speaker was mounted on the wall, its green light glowing. Asher's voice came through it, calm and amused.

"You're on this ship," Elias said.

"Not physically. But my voice is everywhere." Asher laughed. "The device you found is just one of three. There are others, hidden throughout the Halcyon. Cut one, and the others detonate. You'd sink in minutes."

Reyes grabbed her radio. "Find the other devices! Now!"

"Already done," Asher said. "They're well hidden, Commander. You won't find them in time."

"What do you want?" Elias demanded.

"Simple. I want what's mine. The survivors from the Prometheus Platform. All of them. Deliver them to me, and I'll let the ship live."

"You're insane," Reyes said.

"I'm practical. You have one hour. After that, the beacons will detonate, and the Halcyon will join the Ghost Rig at the bottom of the ocean." The intercom clicked off.

Silence hung in the engine room. The hum of the beacon seemed louder now, a countdown ticking in Elias's mind.

"He's bluffing," Jesus said.

"Maybe," Elias said. "But can we risk it?"

Reyes was already on the move. "We need to search the ship. Every compartment. If there are three devices, we find them and disarm them."

"And if he's telling the truth about the detonation?" Mateo asked from the doorway. He'd followed them down, his face pale.

"Then we're all dead anyway." Elias stood. "Let's go."

They split into teams. Reyes's crew took the upper decks. Elias, Jesus, and Mateo took the lower. The ship was large, but they moved fast, checking every corner, every hatch, every shadow.

The first device was in the cargo hold. The second was in the ship's laundry, tucked behind a row of washing machines. Both were identical to the one in the engine room—black boxes with blinking red lights.

Elias studied them carefully. The wiring was the same. The receiver was the same. If he could figure out the trigger mechanism, he might be able to neutralize all three at once.

But he needed time. And time was running out.

They returned to the bridge. Reyes was there, her face grim. Her crew had found the third device in the forward missile bay, but they hadn't been able to disarm it either.

"Forty minutes," Reyes said. "We can't find the trigger frequency. Asher's using military encryption."

"Becky can crack it," Ava said. She'd joined them on the bridge, the boy still clutching her hand. "She's been working on the ship's systems. She might be able to isolate the signal."

Reyes looked at her. "Then get her up here. Now."

Becky arrived minutes later, her laptop under her arm. She set it on the chart table and began typing.

"The beacons are connected," she said. "They're using a mesh network. If I can find the master node, I can send a deactivation signal."

"Can you do it?" Elias asked.

"I don't know. But I'll try."

She worked in silence, her fingers flying over the keyboard. The bridge was quiet except for the hum of the ship's systems and the distant sound of waves.

Elias watched the clock. Thirty-five minutes. Thirty-four. Thirty-three.

"I've got something," Becky said. "The master node is on the submarine. I can't reach it directly, but I might be able to spoof the signal. Make the beacons think they've received the detonation command, but then cancel it at the last second."

"Is that possible?" Reyes asked.

"In theory. But if it goes wrong, we'll blow ourselves up."

"Try it," Elias said.

Becky hesitated. Then she nodded. "Give me ten minutes."

She turned back to the laptop. The others stood in silence, watching. The boy was still there, his eyes wide. Ava held him close.

"Elias," she said quietly. "We need to talk."

"Now?"

"It's about the boy." Ava pulled him aside, away from the others. "He spoke. Just before the attack. He said something about the tall man."

Elias felt a chill. "Tall man? Asher?"

"No. He said 'the tall man is already here.' I asked him what he meant, but he wouldn't say anything else." Ava's voice was shaking. "Elias, what if the boy knows something? What if there's someone on this ship who's part of the experiment?"

Elias thought of Henry's warning, of the note about the sixth survivor. The paranoia was still there, lurking beneath the surface.

"We can't trust anyone," he said. "Not even the crew."

"The crew saved us."

"Or they're part of it." Elias looked at Reyes, who was studying a tactical map. "The submarine knew we were here. It knew our position. Someone on this ship is feeding them information."

Ava's eyes widened. "You think there's a spy?"

"I think we can't rule it out." Elias turned back to Becky. "How's it coming?"

"Almost there." She didn't look up. "Just a few more seconds."

The clock ticked down. Twenty minutes. Fifteen.

"Got it!" Becky shouted. "I've isolated the master signal. Sending the deactivation code now."

She pressed a key. The laptop beeped. For a moment, nothing happened.

Then the hum stopped.

The blinking lights on the beacon went dark.

"It worked," Mateo said. "You did it!"

Becky let out a shaky breath. "The beacons are disarmed. They won't detonate."

Reyes grabbed the intercom. "All hands, the threat is neutralized. Stand down from battle stations."

A cheer went up from the crew. But Elias didn't join in. He was still thinking about the boy's words. The tall man is already here.

"Becky," he said. "Can you access the ship's personnel files? Cross-reference them with the Ghost Rig data?"

Becky looked up, confused. "Why?"

"Just do it."

She worked for a few minutes, her brow furrowed. Then she stopped, her face going pale.

"Elias, there's something you need to see."

She turned the laptop toward him. The screen showed a list of names. The ship's crew. But one name was highlighted in red.

"Chief Petty Officer Daniel Mercer," Becky said. "According to the ship's records, he joined the crew six months ago. But the Ghost Rig data shows he was a test subject. One of the early ones. Subject Zero's first victim."

Elias stared at the screen. "Where is he now?"

Reyes stepped forward. "Mercer? He's one of my best men. He's been on the ship for years."

"The records say otherwise," Becky said.

Reyes grabbed a radio. "Security, locate Chief Mercer immediately. Bring him to the bridge."

A few seconds passed. Then a voice crackled back. "Commander, Mercer's not answering his radio. His last known location was the main deck, near the lifeboats."

Elias was already moving. "He's running."

They burst out of the bridge and ran through the ship's corridors. The main deck was at the stern, a wide open area where the lifeboats hung from their davits.

They arrived just in time to see Mercer climbing into one of the boats. He was a tall man, lean and muscular, with close-cropped hair and a scar across his jaw. He turned as they approached, and his eyes locked on Elias.

"Stay back," he said. "I'm leaving."

"You're not going anywhere," Reyes said, raising her pistol.

Mercer laughed. "You don't understand. I'm not the enemy. I'm the only one who can stop them."

"Stop who?"

"The people behind the Ghost Rig. They're not just on the submarine. They're everywhere. And they're coming for you." Mercer grabbed a lever, and the lifeboat began to lower.

Elias lunged forward, but he was too late. The boat hit the water with a splash, its engine roaring. Mercer was gone.

But he'd left something behind. A small object on the deck where he'd been standing. Elias picked it up.

It was a USB drive.

And written on it in black marker was a single word: *TRUST NO ONE.*

Elias looked at the horizon. The submarine was gone, but the threat was still there. And now they had a new lead.

"What is it?" Ava asked.

Elias turned the drive over in his hand. "I don't know. But I'm going to find out."

He headed back toward the bridge, the others following. The sun was setting, casting long shadows across the deck.

And somewhere in the distance, the submarine's red light blinked once, then disappeared beneath the waves.

The hunt was on.