THE ADVENTURE OF THE YELLOW FACE by Sir Arthur Conan Doyle

Holmes and Watson hear the story of Munro's deception by his wife Effie. She had been previously married in America, but her husband and child had died of yellow fever, whereupon she returned to England and met and married Munro. Their marriage had been blissful-"We have not had a difference, not one, in thought, or word, or deed," says Grant Munro-until she asked for a hundred pounds and begged him not to ask why. Two months later, Effie Munro was caught conducting secret liaisons with the occupants of a cottage near the Munro house in Norbury. Grant Munro has seen a mysterious yellow-faced person in this cottage. Overcome with jealousy, he breaks in and finds the place empty. However, the room where he saw the mysterious figure is very comfortable and well furnished, with a portrait of his wife on the mantelpiece.
Holmes, after sending Munro home with instructions to wire for him if the cottage was reoccupied, confides in Watson his belief that the mysterious figure is Effie Munro's first husband. He postulates that the husband, having been left in America, has come to England to blackmail her.

First published in the Strand Magazine, Feb. 1893, with 7 illustrations by Sidney Paget.