Becca Knightley has never known a world other than the Wake; sheltering in the fortress built from a ruined school from the last civilization, hiding from an alien enemy with outposts in the Dream, with no one surviving past their Sad Birthday at 18, save for the Last Adult guiding his children's crusade against the Invaders.

Jesus Castellano barely knew a world other than the Wake, barely knew a life other than picking over the ruins of the last civilization, desperately wishing he could fight back against the Invaders in his dreams or out of them, hoping against hope that the Last Adult was his father, and worthy of the title.

Meredith Baker remembers a world other than the Wake, a life with enough food and enough medicine and enough hope in the last civilization, acting as navigator and Oracle to her lady knight and the right hand of the last adult, Victoria Lam - and knowing what abuse the Last Adult heaped on her, and planning for the day they no longer need to abide it.

Together, these unlikely heroes must come together, wielding love as a weapon and trust as armor using stolen alien technology none of them can truly understand, and together claw back a world with room for humanity in it from both the occupation of the Invaders and the prejudices of the Last Adult.

This is the story of their children's crusade to save the Dreaming and the Wake alike for humanity.