Divine Madness — Robert Muchamore

CHERUB agents are all seventeen and under. They wear skate tees and hemp, and look like regular kids. But they're not. They are trained professionals who are sent out on missions to spy on terrorists and international drug dealers. CHERUB agents hack into computers, bug entire houses, and download crucial documents. It is a highly dangerous job. For their safety, these agents DO NOT EXIST.

When CHERUB uncovers a link between ecoterrorist group Help Earth and a wealthy religious cult known as The Survivors, James is sent to their isolated outback headquarters on an infiltration mission. It's a thousand kilometers to the closest town, and James is under massive pressure from the cult's brainwashing techniques. This time he's not just fighting terrorists . . . he's got to battle for his own mind.