Zara removed her helmet, breathed real air for the first time in seven years, and smiled at the ghost she used to be.

Zara’s breath fogged the visor of her work helmet. She locked the maintenance bay door and jacked directly into the station’s core—a violation punishable by decompression without a suit. The data stream screamed. Beneath the noise, she found it: a hidden partition labeled .

In the low-gravity hab-dome of Europa Station, “Up16 Code” wasn’t a glitch. It was a ghost.

She didn’t remember that accident. She remembered waking up with a headache and a new fluency in dead languages. The doctors said it was a benign side effect.

The second message arrived.

Zara’s fingers trembled. The Up16 Code wasn’t a warning. It was a . A recursive message she had programmed into her own neural lace before the memory wipe, set to trigger when certain quantum patterns repeated—patterns that were happening right now.

“Day 5: I tried to broadcast the code to Earth. He caught me. He said he’d make me forget. He said he’d put a ‘ghost’ in my head to watch for anyone else who finds the truth.”

Zara’s hand hovered over the emergency purge button. She should have pressed it. Instead, she traced the packet’s signature. It didn’t come from an external relay or a corrupted cache. It came from —the neural lace wrapped around her hippocampus, installed by Station Medical after her “accident” in the magnetic confinement tunnel.