Princes Gate Frank Merlin Series, Book 1.

When a brilliant emigré scientist is killed by a hit and run driver and a young woman's body is washed up in the Thames, Merlin and his team must investigate. The woman is an employee of the American Embassy, whose Ambassador at this time is Joseph Kennedy. DCI Merlin's investigation of diplomats at the Embassy ruffles feathers at the Foreign Office - the American Ambassador is a well-known supporter of appeasement and many powerful and influent...