Sherlock Holmes' only rival is back! More mystery and mayhem for the greatest American detective character of them all: Professor Augustus S. F. X. Van Dusen, AKA The Thinking Machine.
The Encyclopedia of Mystery and Detection calls the Thinking Machine "the most cerebral of all detectives." Here Van Dusen tackles fifteen impossible crimes, including: the Problem of the Fatal Cipher, the Problem of the Stolen Rubens, the Problem of the Haunted Bell, the Problem of the Interrupted Wireless, the Problem of the Cross Mark, the Problem of the Hidden Million, the Problem of the Vanishing Man, the Problem of the Roswell Tiara, the Problem of the Golden Dagger, and the Problem of the Private Compartment. Match wits with mystery's greatest genius in these two complete Thinking Machine books from the Golden Age of the early 1900s.
