The Red Thumb Mark

When a priceless diamond disappears and the only clue is a bloody fingerprint, the case seems open-and-shut—until Dr. John Thorndyke steps in. The Red Thumb Mark introduces Freeman’s brilliant detective, a man who combines sharp logic with groundbreaking forensic science to uncover the truth. This isn’t just another whodunit; it’s one of the earliest detective novels to feature fingerprint evidence, making it a landmark in crime fiction.

As Thorndyke pieces together the puzzle, readers are drawn into a gripping battle between appearances and reality, where even the most “perfect” proof can be questioned. With its clever twists, courtroom drama, and exploration of justice, this classic feels surprisingly modern, reminding us that evidence alone doesn’t always tell the whole story.

For fans of Sherlock Holmes, legal thrillers, and forensic mysteries, The Red Thumb Mark is a must-read—a brilliant blend of science, suspense, and detective genius that still thrills more than a century later.