James Mayo - Let Sleeping Girls Lie

First published by William Heinemann Ltd (hardback) in 1965. Published in paperback by Pan in 1967, this third printing (ISBN: 0330106023) is dated 1969. James Mayo was a pseudonym of Stephen Coulter.

Back cover synopsis: "Charles Hood, dynamic hero of 'Hammerhead', tackles another breathtaking assignment. At the request of Lord Claymore, head of the City's secret consortium 'The Circle', he trails a lovely blonde with a Bentley across Europe. This doesn't sound dangerous. It isn't - it's lethal..."