Man in Lower Ten

Published in 1906, 'The Man in Lower Ten' is a mystery novel by Mary Roberts Rinehart that follows Lawrence Blakeley, a lawyer who embarks on a trip to Pittsburgh to confirm the forgery of bank notes. After a night on the train, Blakeley wakes to find his belongings stolen and becomes embroiled in a murder investigation when a weapon is discovered under his pillow. This novel is notable for its early use of the 'locked room' mystery trope and Rinehart's influence on the genre of detective fiction.