On an acid-rain moon, Firebase Null is a salvage-built trench outpost above old agricultural basins already saturated by the Goldrot. The Exiled Juvenile Contingent must hold the position and protect its central water tanks while an indigenous militia waits beyond the eastern ridge for the fortifications to fail. When a missing rifleman is recovered alive, a retrieval team carries him through a broken decontamination gate and into the aid station.

Goldrot root-arteries digest the structural polymers beneath the bunkers, while slow brass-gold bodies weld themselves to walls and drill through armor. Rifle fire only shatters their shells into toxin-bearing cysts, turning every wound, boot tread, and canteen into another route for contamination. As the medical deputy tries to save the captive and the commander demands he be burned, the bloom re ...