A classic Agatha Christie short story, available individually for the first time as an ebook. Years ago, a murder was committed on the night of a costume party thrown by Sir Richard Haydon, a man who was a rival of his cousin Eliot for the affections of the lovely Diana Ashley. Sir Richard's estate contained the grove of Astarte, which held a mysterious stone summer house. The summer house was rumoured to have been the site of numerous sacred rites in years long past, and in a surprise act, Diana enacted the role of Astarte, startling Sir Richard who stumbled and fell. When the others reached him body, he was found dead of a knife wound to the heart. After all these years, can the Club still solve the case?