It's Jaye's 21st birthday, but since she was raised on Mars, it passes just like every other day: harvesting mushrooms from the grow room, tending her fellow Trueborn Children of Mars, and stalking her murderous, neurotypical father.Until a message comes from Earth--an Earth they thought was lifeless. Apparently one man still draws breath, and he's a maniac with the launch codes for a nuclear missile in Martian orbit.Jaye must work with her father or everyone dies - including her own daughter. And she needs more than just survival. She needs a reason to live.