First came the malfunctions. Then came the war. Selene thought repairing a derelict station would be her biggest challenge. That was before the turrets started firing. Before the hull breaches. Before the mercenary blockade arrived to claim what she'd found. Black Sky fights dirty. Corridors seal during firefights. Life support fails mid-battle. Ancient weapon systems activate with targeting parameters centuries out of date. Every deck holds new dangers, new systems coming online, new ways to die. The mercenaries keep coming. Boarding pods slam into the hull. Infiltration teams sabotage critical systems. Their leader promises to tear the station apart piece by piece until he gets what he wants. Selene's crew fights back with whatever works. Jury-rigged turrets. Reactivated war drones. Corridors flooded with toxins. The station provides weapons, though using them might trigger something worse. Each battle awakens more systems. Each system remembers its purpose. The fights grow deadlier. The station grows hungrier. Something massive stirs in Black Sky's depths, and both sides race to control it. Will Selene unlock the ultimate weapon that saves her crew and defeats the invaders? Or will she unleash something that makes the mercenaries look like the lesser evil?