The Geneva Mystery — Francis Durbridge

Swinging between London and Geneva, Paul Temple and Steve are involved in a case that involves finding the answer to one vital question: is Carl Milbourne, thought to have perished in a car accident, still alive? A Hollywood film producer and a famous actress believe he is, but there are others who are determined to stop the Temples discovering the truth. There are deep mysteries to uncover and plenty of action and suspense which might even involve the death of Paul Temple, unless he can act quickly . . .