About the book: year / Collection "Thirteen Mysterious Cases". Sir Henry comes again to St. Mary Mead. On the morning of his arrival, a local girl is found drowned. Local residents gossip that Rose was pregnant by the rake Rex Sandford, a London architect, and committed suicide out of shame. Later, an upset Miss Marple came to Sir Henry and said that Rose had been killed. She asks for a thorough investigation. She hands Sir Henry a piece of paper on which the name of the suspect is written, which he can read if he thinks that the investigation is not going along the right path. The girl's father is sure that Sandford is the killer. Investigators bring the young man in for questioning, where he admits that he is the father of Rosa's unborn child. He wrote her a note and made an appointment at the river, but could not come. Stanford becomes the main suspect and he is given a written undertaking not to leave the place..