The Uttermost Farthing is a fiction book written by R. Austin Freeman. The story begins with the murder of Humphrey Challoner's wife killed by a bullet from a robber at his home. Mr. Challoner is a wealthy genius man, and he collected the robber's fingerprints as well as part of his hair, which his wife was holding in her hand. He owns a private museum that houses a collection of human and animal skeletons as well as skulls that have shrunk. He hands over the museum and the archives to his doctor, who then makes known the Museum Archives, which contain the tales of how the skeletons were acquired and how Mr. Challoner ultimately tracked out the person who killed his wife. It's an interesting fictional detective story that will keep the readers interested to read on the story!