"On April Fool's Day 2000 a rare and highly valued Enigma machine was stolen from Bletchley Park, which used to be Winston Churchill's top secret Second World War codebreaking operation. The machine, known as an Abwehr, serial number G312, had been used by German military intelligence staff during World War II to encrypt high-level messages. The theft was the culmination of a hate campaign against Bletchley Park's Director. Death threats to the Director preceded a series of notes demanding money for the machine's return. " "A major police operation was launched but little progress was made until a part of the machine was finally posted to TV presenter, Jeremy Paxman at the BBC. Efforts continued to recover the remainder of the machine and an arrest was finally made. " "Christine Large, Director of Bletchley Park, skillfully interweaves the original stories of Enigma escapades, containing significant new material, with that of this most recent twist in astonishing history. "--BOOK JACKET.