The Sleeper Caper — Richard S. Prather

Richard S. Prather's creation, Shell Scott, was the second most popular private detective (after Spillane's Mike Hammer) of the 1950s. With over 40 million books sold. The Shell Scott stories were as powerful as a gut-wrenching Spillane story, but used more tongue-in-cheek humor.

In The Sleeper Caper, Shell is sent to Mexico to find who is rigging the horse races. When the most honest jockey south of the border is drugged and literally bites the dust on the race track. Shell is not only out to close this case -- he out for revenge!