From the Dragon Award-nominated author of Astra Academy: One young woman leads a ragtag band of survivors across a fractured, post-alien-invasion America.

Hacker Kita Yamasaki would do anything to escape the post-apocalyptic landscape that was the result of the Forever Winter. But for a normal person, the only options are the war-hungry nation-state of Ex Cathedra or the isolationist United California. Fortunately, Kita is anything but normal.

When she finds a faded brochure for the BC Oasis-an underground greenhouse capable of sheltering a quarter million people-she jumps at the opportunity, even going so far as to steal a fission battery the oasis requires to operate at full capacity. There's just one problem . . . The battery belongs to the ruthless judges of Ex Cathedra.

Now Kita finds herself the target of a deadly chase. In her race to safety, she picks up three fellow travelers: Dallas; his mute daughter, Crouton; and Bishop, a junk hunter. But will they betray her and take the battery for themselves? Is one of them a member of the cultist Iron-Blooded who worship the few remaining alien invaders scattered across Earth's wasteland?

Faced with certain death if they're caught by the judges' power-armored soldiers, Kita must put aside her suspicions and make a headlong dash for sanctuary-and the promise of a new life.