Read Chapter 5: The Whispering Coin

The coin was warm against Mack’s palm, warmer than it had any right to be after an hour at the bottom of the Devil’s Trench. He sat on the stern of the *Sea Serpent*, engine idling, the sun beginning its slow bleed into the horizon, and turned the gold over in his fingers.

Blackwood’s insignia was pressed into the face: a skeletal hand clutching a compass rose, the needle pointing due north. On the reverse, a ship—the *Catalina* herself, three masts, full sail, riding a wave that curled like a claw. It wasn’t Spanish mint. It wasn’t any mint. It was crude, personal. A man’s signature stamped in gold.

“You gonna stare at that thing all night, or are we gonna celebrate?” Pete’s voice came from the wheelhouse door, his grin wide and boyish. “First real haul in months, Mack. That’s worth a rum.”

Mack closed his fist around the coin. “Tomorrow. We dive again at first light.”

Pete’s grin faltered. “You heard the weather report? That storm’s still circling. The one that nearly put us on the reef. And Cruz? He’s still out there, watching. You said one coin, test the waters, then we talk about the full recovery.”

“I’m talking about it now.” Mack stood, tucking the coin into the breast pocket of his wetsuit. “We’re talking about it in the morning.”

Abigail appeared in the companionway, a book in her hand, her glasses pushed up into her hair. She’d been quiet since the surface, watching him with that academic’s stare that made him feel like a specimen. “Marcus, a word. In private.”

Pete looked between them, raised his hands, and retreated. Mack followed Abigail into the galley. She closed the hatch behind them, the space suddenly small, smelling of diesel and stale coffee.

“I decoded more of the marginalia,” she said, laying the book open on the table. Beneath the map’s main chart, in a script so faint it was almost invisible, were lines of Latin. “It’s not navigation. It’s instruction.”

Mack crossed his arms. “Instruction for what?”

“For the treasure.” She tapped the text. “*Ad aurum vindicandum, primum iter ultimum ducis perficere.* Roughly: ‘To claim the gold, you must first complete the captain’s last voyage.’” She looked up at him. “That’s not a riddle, Marcus. That’s a condition. Blackwood didn’t just hide his treasure. He bound it to a task.”

Mack felt the coin burn against his chest. “What task?”

“The map doesn’t say. But his last voyage—there are records. He was sailing home from Hispaniola when the *Catalina* went down. Historians have always assumed he ran aground in a squall.” She closed the book. “But Blackwood was a navigator of unusual skill. The storm didn’t take him. He chose that trench.”

“Chose it?” Mack shook his head. “Nobody chooses to sink in a trench.”

“A man who wanted to keep something safe might.” Abigail’s eyes were sharp. “What did you see down there, Marcus? You came up shaking. You didn’t just find a coin.”

Mack looked away. The whisper was still in his ears, that ghost-voice sliding like cold water across his skull. *Blood releases the lock.* “I saw the wreck. I took the coin. That’s all.”

She studied him for a long moment. “If you’re keeping something from me, I can’t help you. I came on this boat to clear my name. But I won’t be a tool for something I don’t understand.”

“You’re not a tool.” He forced a grin that didn’t reach his eyes. “You’re my translator. And tomorrow, you’re going to help me figure out what the hell a ‘last voyage’ means.”

He left her in the galley. As he climbed the ladder to the deck, the coin seemed to pulse against his ribs, a second heartbeat.

---

That night, Mack dreamed.

He was not himself. He was Silas Blackwood, standing at the helm of the *Catalina*, rain lashing his face like a flagellant’s whip. The deck tilted wildly, timbers groaning, the sea beyond the rail black and boiling. Around him, crewmen screamed, hauling lines that were already frayed, already useless. The storm was not weather. It was a thing, alive, with a voice that howled in a language older than words.

“Captain!” A young man, barely more than a boy, clung to the wheel beside him. Blood ran from a gash in his forehead. “We can make the shallows! We can ride her out!”

Blackwood looked at him, and Mack felt the captain’s cold resolve settle in his chest like a stone. “No, lad. We’re not riding anything out.” He reached into his coat and pulled out a key, black iron, heavy, warm with his own body heat. “We’re going down.”

“Down?” The boy’s eyes went wide. “Captain, the cargo—“

“The cargo is cursed,” Blackwood said, and his voice was not angry. It was tired. Tired and certain. “Every coin we took is a soul we sold. There’s only one way to keep them from coming back.” He turned the wheel hard, pointing the *Catalina*’s bow at the heart of the maelstrom. “We give the sea its due.”

The boy screamed as the ship pitched forward. Mack tried to wake himself, tried to tear his hands from the wheel, but Blackwood’s hands were his own, welded to the wood, and the trench was opening below them like a hungry mouth.

In the dream, the ship went down. And in the dream, as the water poured over his head, Blackwood turned to look at him—looked through the boy’s eyes, directly into Mack’s own—and said, *“You have my coin. Now you have my errand.”*

Mack woke gasping, bolt upright in his bunk. His hand flew to his chest. The coin was there, but it was no longer warm.

It was glowing. A faint, sickly green luminescence, pulsing in time with his heartbeat, casting the cabin in an underwater light. He stared at it, watching his own faint reflection in its surface, and saw not his face but the captain’s: old, weathered, with eyes black as the trench itself.

Then the glow faded. The cabin went dark. Mack sat in the blackness, breathing hard, the whisper of the gold still threading through his mind.

*Blood releases the lock.*

---

Morning came gray and rough. Mack emerged on deck with the coin back in his wetsuit pocket, its weight a constant accusation. The sky was bruised, the sea unsettled, and Pete was already at the winch, prepping the dive gear.

“Morning, Captain.” Pete’s grin was back, but his eyes darted toward the cabin. “Get any sleep? You look like you wrestled a barracuda.”

“Enough.” Mack took a coffee from Abigail, who was perched on the rail with her book. She didn’t look at him. He didn’t blame her. “We need to move. The storm’s clearing. We’ve got maybe six hours before it swings back.”

Pete nodded and hauled on the winch line, testing it. The wrench in his hands slipped, clattering against the steel deck with a crash that hit Mack like a physical blow.

Mack spun. “Careful with that!” The words came out sharper than he intended, a snarl, all his coiled tension released in one ugly burst. “You want to crack the hull? We’re not made of money!”

Pete froze, wrench in hand, face draining of color. “Sorry. Just a drop.”

Mack’s jaw worked. He forced air into his lungs. “Just—just be careful.”

Behind him, Abigail lowered her book. She’d seen it. The tremor in his hands, the wild look in his eyes. She didn’t say anything, but her gaze was a question he had no answer for.

Rosa was the only one who spoke. The old woman had appeared at the galley door, silent as a ghost, her shawl wrapped tight around her shoulders. She had not been on the boat when they left Nassau. No one had seen her board. But there she was, and her eyes were black and knowing.

“You heard it,” she said. Not a question. “The whisper. It has already attached itself to you.”

Mack stared at her. “You know what this is.”

“I know what you are now.” She stepped closer, and the air around her seemed to drop a degree. “You are no longer a salvager, Marcus Donovan. You are the captain’s errand boy. And the dead do not pay wages.” Her gaze flicked to his pocket. “They collect them.”

She turned and went back below before Mack could answer. The coin in his pocket vibrated, a low hum against his skin. He felt it through the wetsuit, felt it in his teeth, his bones.

Abigail came to his side. “What did she say?”

“Nothing.” Mack rubbed his face. “Nothing that makes sense.”

He looked out at the sea, at the spot where the *Catalina* waited in her cold, dark trench. The dream was still with him—the tilt of the deck, the boy’s screaming, Blackwood’s tired voice.

*You have my coin. Now you have my errand.*

He was going to have to go back down there. Not for one coin. Not for two. He was going to have to solve a two-hundred-year-old suicide and finish a voyage that had ended in a grave of black water. And he was going to have to do it before Reyes broke his knees and Cruz stole everything he found.

He pulled the coin from his pocket. It was cold now, dormant. But he knew, deep in his gut, it would wake again.

And when it did, it would speak.