Title: Operating codes
Description: Upon moving to Sentinel House, five-year-old Matty and fifteen-year-old Graham encounter ghosts from a nearby abandoned military compound, but real trouble begins when their father is arrested for posting information about a secret weapons system on the Internet.
Subjects: Computer crimes, Conscientious objectors, Fiction, Ghosts, Trials (Treason), Weapons systems, Children's fiction, Ghosts, fiction, Conscientious objectors, fiction, England, fiction
Places: England