The book that started the series. Dr. Robert Fredrickson, formerly Mongo the Magnificent, an ex-circus performer dwarf, is now a college professor and private eye with a Phd in criminology and a black belt. He is hired to look into the death of a prominent architect 5 years ago by the husband of the architect's widow, who thinks he may still be alive. His investigation immediately opens a can of worms that bring in the FBI, the Russians, and other countries' spies, and soon Mongo is in very deep water. This is a fantastic tale, a mix of thriller and science fiction, and though it may sound hokey Chesbro really makes it work, and work well, due to the strength of his characters. Published in 1977, it stands the test of time despite the dated references, and the series is one I really enjoy.
This is the first book in the Robert "Mongo" Frederickson series. Mongo is a dwarf who happens to be both a professor and a former circus acrobat. This series was once described as Stephen King meets Raymond Chandler and that is a great description. I highly recommend it!