A young fanatic, a cadre of elite rebel spies, and a betrayal that will change everything.

Timothy is awkward, angry, and itching to fight. When he is kidnapped and conscripted into a secret army—and when a girl with a strange set of skills sets him free—he throws himself into the rebel cause. Igniting years of pent-up frustration into an obsessive drive to fight, spy, and deceive better than anyone else, he loses himself in the Band. But a bigger game is afoot, an old enemy is on the hunt, and everything Timothy has come to live for is at stake.