About the Book: The Thinking Machine Collection by Jacques Futrelle introduces Professor Augustus S. F. X. Van Dusen, the brilliant “Thinking Machine” whose extraordinary powers of logic unravel the most complex mysteries. Accompanied by journalist Hutchinson Hatch, Van Dusen investigates impossible crimes, ingenious puzzles, and baffling locked-room cases using scientific reasoning and flawless deduction. Featuring the legendary The Problem of Cell 13, this classic detective collection delivers timeless mystery, suspense, and intellectual challenges. A perfect choice for readers who enjoy Sherlock Holmes-style investigations, vintage crime fiction, and brilliant detective stories.