The second spinoff book in the bestselling AFTER post-apocalyptic series. After a devastating solar storm erases the world they knew, Mackie Dailey and a small group of survivors build a new life on a rural college campus. But there’s another kind of evolution threatening to wipe out the remnants of the human race: bizarre mutants known as “Zapheads” who destroy anything that moves. As the Zapheads adapt from mindless savages into more cunning predators, Mackie draws on his lethal skills as a former hit man to protect his new tribe. But Zapheads aren’t the only danger. Mackie’s old boss, Lucas Krider, is gunning for revenge with his own band of killers. As the campus becomes the battleground for the world’s future, Mackie discovers the biggest threat may be the monster raging inside him.