The first of Dr. Thorndyke’s cases finds him trying to prove the innocence of a young man accused of being a diamond thief despite the fact that his finger print was found at the scene of the crime.
Valuable diamonds are missing and the thumb print of Reuben Hornby is discovered in a drop of blood on a paper at the bottom of the safe. The experts of Scotland Yard are all in agreement. It would seem an open and shut case. Or is it? For reasons known only to himself, Dr. John Thorndyke has doubts about the authenticity and origins of the evidence. Now he must make his case in open court using the latest techniques of Edwardian science to prove the innocence of a young man. Will he succeed, or with the case of “The Red Thumb Mark” prove to be not only his first, but his last case?
More from The Dr. John Thorndyke Series .
- The Mystery of 31 New Inn from the Dr. Thorndyke Series
- John Thorndyke’s Cases from the Dr. Thorndyke Series
- The Red Thumb Mark from The Dr. Thorndyke Series
- The Eye of Osiris from The Dr. Thorndyke Series
- A Silent Witness from the Dr. John Thorndyke Series
- The Cat's Eye from the Dr. John Thorndyke Series
- Helen Vardon's Confession: A Dr. John Thorndyke Story
- As a Thief in the Night: A Dr. John Thorndyke Story
- Mr. Pottermack's Oversight: A Dr. John Thorndyke Story
- Dr. Thorndyke Intervenes: A Dr. John Thorndyke Story
- The Singing Bone: The Adventures of Dr. Thorndyke
- The Stoneware Monkey: A Dr. John Thorndyke Story
- The Great Portrait Mystery, and Other Stories: A Collection of Dr. John Thorndyke and Other Stories
- The Penrose Mystery: A Dr. John Thorndyke Story