Sidney Patterson's body has been found in a burning building. But, he was shot in the back! Mr. Patterson then turns out to be Duncan Frazier! The teeth tell the story.

A magenta colored blotting paper is on exhibit in the Black Museum because of its involvement with a murder in Oxford. A foreign gentleman's poor sister has been killed.

Thomas A'Becket Appleby has been murdered. His Wife Alma is arrested for the crime, but her young lover confesses to the crime.

A wireless set that was never intended to be operative is in the Black Museum because of its involvement with the murder of a bartender with strychnine.