In 1917, John R. Brinkley arrived in the tiny town of Milford, Kansas. Here he opened a medical practice and introduced an outlandish method of restoring fading male strength - using goat glands. Thousands of clients quickly turned the “doctor” into the richest and most famous surgeon in America. His fame attracted the attention of another great charlatan, Morris Fishbein, who vowed to throw the country's "most daring and dangerous" swindler out of business. But all his efforts seemed to only spur Brinkley to new heights - he went into broadcasting and politics, and his methods of electioneering are still used today. How did their game of cat and mouse end? And was Brinkley really an inventive charlatan who maimed hundreds of patients, or an experimental physician like Professor Preobrazhensky from Bulgakov’s “Heart of a Dog”? In this book, Pope Brock reveals the secrets of one of the most notorious scams in American history.