The Intimidators
It was a double mission this time. One, to terminate a top-notch enemy agent. Two, to locate the missing fiancee of a Texas oil millionaire. Somehow they were connected. Matt didn't know how--until a few members of the international set also disappeared near the infamous Bermuda Triangle. Everybody figured they were dead. Then Matt discovered they were alive--and part of a very deadly game.
Donald Hamilton
Donald Hamilton was a U.S. writer of novels, short stories, and non-fiction about the outdoors. His novels consist mostly of paperback originals, principally spy fiction but also crime fiction and Westerns such as The Big Country. He is best known for his long-running Matt Helm series (1960-1993), which chronicles the adventures of an undercover counter-agent/assassin working for a secret American government agency.
Hamilton began his writing career in 1946, fiction magazines like Collier's Weekly and The Saturday Evening Post. His first novel Date With Darkness was published in 1947; over the next forty-six years he published a total of thirty-eight novels. Most of his early novels whether suspense, spy, and western published between 1954 and 1960, were typical paperback originals of the era: fast-moving tales in paperbacks with lurid covers. Several classic western movies, The Big Country and The Violent Men, were adapted from two of his western novels.
Matt Helm
Matt Helm consists of twenty-seven books. The current recommended reading order for the series is provided below.

