Matt Helm - The Intimidators

"It was a double mission this time. Firstly, to terminate a top-notch enemy agent. Secondly, to locate the missing fiancée of a Texas oil millionaire, lost in the Bermuda Triangle. Somehow these two cases were connected, but it wasn't clear how until more high-profile types disappeared. They weren't dead, just part of a deadly little game"--Page 4 of cover.