Finding a killer in the middle of a blitz is murder. When a cryptanalyst in Britain's top secret Code and Cyber School is murdered, alarms sound in the highest echelons of Parliament. Was it merely a lover's quarrel that ended her life, or was she killed after telling the Germans everything they wanted to know? That's what MI6 Agent, Commander Grey Hamilton must find out. He is joined in the chase by an old university friend from Scotland Yard, and...