John Havoc had just finished an assignment for Department Q but the holiday his Whitehall masters booked him on to the Bay of Naples, turned out to be anything but a holiday...
Characters
John Havoc; Gerry Ayre; Mrs. Smiley; Professor Beccles; Renato Dassi; John Bevan (villain)
Synopsis
John Havoc is assigned to find out which member of a party of tourists is the leader of a smuggling operation. When the agent working with him is killed an Italian detective is assigned to help him.