Hugo Award winner Emma Newman returns to the captivating Planetfall universe with a novel about vengeance and the lengths to which one will go to save the future of humanity.

Six months after she left, Dee is struggling to manage her rage toward the people who ordered the nuclear strike that destroyed Earth. She's trying to find those responsible, but she's not getting very far alone.

A dedicated gamer, Dee is endeavoring to discover a mersive good enough to enable her to escape her trauma. When she is approached by a designer who asks her to play test his new game, she hopes it will be what she needs--but it isn't like any mersive she's played before. When a man suddenly dies in the real world, she realizes that at the same time in the game, she killed a character who bears a striking resemblance to the dead man--a man she discovers was one of those responsible for the death of millions on Earth.

Disturbed, but thinking it must be a coincidence, Dee continues the hunt for information. But when she finds out the plans for the future colony, she realizes that to save what is left of humanity, she might have to do something that risks what remains of her own.