The year is 2285. Humanity is losing its grip on the colonized solar system. Genocidal AI terrorists ravage far-flung colonies, and the UN bureaucracy is seemingly determined to seize defeat from the jaws of victory.

Elfrida Goto, a Space Corps agent, is responsible for protecting vulnerable space colonists. But a ruthless conspiracy interferes, determined to use her for their own criminal purposes. Her career in ruins, Elfrida confronts the deadly forces threatening the solar system with nothing but courage, her sense of humor, a few good friends, and a sword that isn't even hers.

Trapped on a dying space station, stranded in the asteroid belt, and racing across the searing dayside of Mercury, the battle accelerates to a terrifying climax. Elfrida has one last chance to save humanity. But first she'll have to save herself.