The Enemy Within - Department Z, Bk 25 Author:John Creasey Charles Corliss, son of a murdered agent of Britain's Department Z, seemed like the perfect recruit for the ultra-secret spy organization. But the security checks cannot reveal the secret hate which turns this charming young man into a double agent dedicated to the Communist cause. — With its painstakingly developed cloak of secrecy breached,... more » Department Z is helpless at a time when it finally is on the brink of smashing the enormous Russian espionage organization operating throughout England.