Life turned upside down for Maddy Montgomery when she found out she was half-Angel and was catapulted into the scene of flashbulbs, paparazzi, and the fervent adulation that comes with being in the celebrity Angel world. She's trying to juggle her ordinary life—high school, family, friends—with the intense demands of being in the public eye as heartthrob Angel Jackson Godspeed's girlfriend.

And now Maddy must face the most difficult choice of her life. She's been offered the chance to become a Guardian. This means entering into dangerous and high-stakes training, with no guarantee that she can succeed. But more than that, it would mean leaving her mortal life behind—forever—and allying with the Angels at a time when their relationship with humans is heading for war. . . .