Camp X: Shell Shocked

Camp X is a children's spy novel written by Canadian author Eric Walters. Set in World War II, the novel is about two boys, Jack and George, trying to save the secret Canadian military base, Camp X, which they accidentally discover after playing a fake game of war. Camp X was first published in 2002 and was followed by several sequels: Camp 30, Fool's Gold, Shell Shocked and Trouble in Paradise.
Camp X is dedicated to the memory of William Stephenson, who established the spy camp. He appears in the novel as Little Bill.