Read Chapter 13: Breadcrumb Trail

The greenhouse module hummed with the quiet machinery of life support, a steady pulse of filtered air that felt almost obscene after the hours of silence outside. Elena stood at the terminal, her fingers resting on the keys, the glow of the screen painting her face in pale blue. Behind her, Jack had propped himself against the wall, his leg stretched out, the pressure bandage dark with seepage.

“I’m going to check the relay logs for Liang’s transmission signature,” she said, not turning around. “If he bounced through a second station before the explosion, there’ll be a trace.”

“The base is dead,” Jack said. “Command killed the network.”

“Not Command. Liang.” She tapped the screen. “Whoever buried the data core didn’t want it found. But Liang wasn’t running from them—he was running to something.”

The terminal was slow, older than the base systems, and she had to coax each file out of its archive. But the satellite relay logs were synced, and she found what she was looking for. A burst transmission, timestamped eleven minutes before the Sector C explosion, sent from the base to a secondary relay station two hundred kilometers east of Relay 7. Coordinates scratched into the data like a claw mark.

“There,” she said, pointing. “He had a fallback.”

Jack pushed himself off the wall and limped over, squinting at the screen. His jaw was tight. “That station’s been decommissioned for months. No power, no maintenance.”

“Which is exactly why he’d use it,” Elena said. “No one’s watching. No one’s logging. The transmission would be invisible until someone pulled the archive.”

She looked at him. His face was drawn, but his eyes were sharp. He knew the stakes. If Liang had left something behind—a message, a data cache, a trail—it would be the only way forward.

“The rover’s not going to make two hundred kilometers,” Jack said.

“It’ll make it,” she said. “I’m not giving it a choice.”

The drive took four hours. The rover coughed and whined, the power cell dipping into the red, but Elena coaxed it forward over the cratered plain. Jack sat in the passenger seat, his leg propped against the dash, not speaking. The silence had a texture now, thick with everything they hadn’t said. She could feel his gaze on her, and she knew he was thinking about the override code. The one that had warned him before the explosion. The one that belonged to her specialty.

She hadn’t set that warning. She didn’t know who had. But the code existed, and Jack believed it was hers. Every time he looked at her, she saw the question he wasn’t asking.

The relay station came into view as a dark speck against the horizon, then grew into a skeletal tower of rusted metal and shattered solar panels. It had been stripped clean. Door panels gone, antenna array snapped off at the base, cables ripped from their housings with enough force to bend the brackets. Whoever had been here had taken everything that mattered and left the rest to die.

Elena killed the rover’s engine and stepped out, her boots crunching on the regolith. Jack followed, slower, favoring his leg. They moved through the station’s interior in silence. The control room was gutted—console faces pried open, circuit boards gone, only a few stray wires hanging from their sockets like dead vines.

“Nothing,” Jack said. “He never came here.”

“He did.” Elena knelt by the doorway, where a pool of shadow had gathered under a broken shelf. Something metallic glinted there, half-buried in dust. She reached for it, and her fingers closed around a tool—a crescent wrench, worn at the grip, the metal etched with a serial number too faint for the naked eye.

She brought it into the light. The number was scratched into the shaft, not stamped. Hand-work. The kind of personal marking that someone made when they didn’t want their equipment borrowed.

Her chest went tight.

“Elena?” Jack’s voice came from behind her. “What is it?”

She turned the wrench over. The serial code was familiar—not because she’d memorized it, but because she’d written it herself, years ago, on a tool that had belonged to her Mars field team. The one she’d led before the accident. Before Marcus.

“This was mine,” she said, her voice thin. “My team’s equipment. From Mars.”

Jack was quiet for a moment. Then he moved closer, looking down at the wrench in her hand. “How did it get here?”

“I don’t know.” But that was a lie. She knew. She just didn’t want to say it out loud.

Marcus had carried that wrench. He’d used it to adjust the seals on his suit every morning, a ritual she’d mocked him for. She’d watched him die with it still clipped to his belt, the metal flashing in the red dust as the ground gave way.

Her debt was coming due.

“Liang knew Marcus,” she said. The words felt like glass in her throat. “This wasn’t a relay station. This was a drop point. Liang was here, Jack. And he left this behind on purpose.”

Jack’s eyes narrowed. “As a message?”

“As a receipt.” She closed her hand around the wrench. “He knew I’d find it. He knew I’d understand.”

That was the worst part. Liang hadn’t just known about the data core, about the explosion, about the sabotage. He knew about her past. He knew about Marcus. And he was using it now, pulling her deeper into a trail she never wanted to walk.

Because if Liang knew Marcus, then Liang knew what Elena had done. And whatever he wanted from her, she couldn’t refuse.

“We need to get back in the rover,” Jack said. “We still have a base to save.”

Elena didn’t move. She stared at the wrench in her hands, the weight of it familiar and unbearable. The door of the station groaned in a gust of wind, and she felt the dust settle around her, coating her suit in ancient grey.

“He left it for me,” she said. “Which means he knows I’m coming. Which means wherever he’s going, he wants me to follow.”

She looked up at Jack, and the question in his eyes was no longer about override codes or secrets. It was about what Elena was willing to risk. Who she was willing to become.

“Let’s go,” she said.