Freeman, R Austin: Helen Vardon's Confession. V1. 11 Mar 2011
 

Richard Austin Freeman (11 April 1862 London - 28 September 1943 Gravesend) — known as R. Austin Freeman — was a British writer of detective stories, mostly featuring the medico-legal forensic investigator Dr Thorndyke. He claimed to have invented the inverted detective story (a crime fiction in which the commission of the crime is described at the beginning, usually including the identity of the perpetrator, with the story then describing the detective's attempt to solve the mystery) and used some of his early experiences as a colonial surgeon in his novels.
A large proportion of the Dr Thorndyke stories involve genuine, but often quite arcane, points of scientific knowledge, from areas such as tropical medicine, metallurgy and toxicology.

Through the open door of a library, Helen Vardon hears an argument that changes her life forever. Helen's father and a man called Otway argue over missing funds in a trust one night. Otway proposes a marriage between him and Helen in exchange for his cooperation and silence. What transpires is a captivating tale of blackmail, fraud and death. Dr Thorndyke is left to piece together the clues in this enticing mystery.