The Monkey Handlers is a 1990 thriller novel by G. Gordon Liddy, published by St. Martin's Press.
A real estate agent in the Hudson Valley region, Michael Stone, who formerly served as a Navy SEAL, has to stop a group of people from West Germany who experiment on animals as well as some Islamists.
He had served with Saul, whose sister Sara Rosen faced arrest for trespassing in a pharmaceutical facility owned by the West German company Riegar, headed by Walter Hoess.
Publishers Weekly stated that "Liddy's touch is deft" though the book had an "abrupt" ending.
[1] Kirkus Reviews stated that the novel "appeals powerfully to the frustrations and fantasies of audiences fed up with the system: this is just the thing for readers impatient with the rat race who wish they could arm themselves and click on.