Equal parts Z for Zachariah and Mad Max, Gilpatrick and Lang's darkly funny debut follows a girl from outer space and an aging scavenger who must learn to trust each other in order to survive.

Welcome to the Junkyard, a toxic wasteland where humans, machines, and everything in between fight for survival among the ruins of a long-forgotten war. This is where Diane Three-One-Seven finds herself after the arkship Cradle—the only home she's ever known—falls out of the sky.

When a mysterious scavenger named Virgil stumbles upon Diane's escape pod, the two strike a deal (if it can be called that). Virgil's spare mechanical battle suit, nicknamed the "Grave Walker," can help Diane survive the ruined atmosphere—but it could kill her if it runs out of power. And Diane's untainted blood, a precious resource in this radioactive hellscape, could keep Virgil alive long enough to finish one last mission—but at what cost?

The two will have to wait to work out their differences, however, as a new threat appears on the horizon: a masked man called the Messenger, who hopes to subdue the Junkyard with a mysterious new power. With the help of a ragtag team of misfits, Diane and Virgil may just have a chance to stop him—if they don't kill each other first.