In the outer reaches of the asteroid belt, trust is a liability—and secrets are currency.

Captain Jim Eckhart and the battered crew of the Argo are good at surviving bad decisions. Sheltering Mariana Kade may be the one they don’t survive.

A brilliant young Federation science officer with holes in her memory, Mariana is fleeing a government determined to reclaim her while following a trail she barely understands. As Jim’s eighteen-year-old son JT joins the search for answers, the trail leads the crew to Project Chimera and the frozen ruins of Ganymede.

There, a desperate attempt to save JT leaves him forever changed. Beneath the ice, they uncover a secret older than humanity’s claim to the Solar System.