Danny Caulfield's quiet Christmas break from Wilsons, the school for spies, is shattered by gunshots and a heartrending discovery about his parents. That same night, he's summoned to Wilsons' to prepare for a mission: under an assumed identity, Danny must find a way to protect the Treaty Stone that keeps peace between the Upper and Lower worlds. Meanwhile, the evil Ring of Five pursues Danny, for he is the "true Fifth"-only Danny can unite the members of the Ring and awaken their full powers as master spies.

EOIN McNAMEE was born in County Down, Northern Ireland. He is also the author of the Navigator trilogy for children, and he is critically acclaimed as a writer of novels for adults, the best known being Resurrection Man, which was made into a film. He was awarded the Macaulay Fellowship for Irish Literature, and has also written two adult thrillers under the name John Creed.