1) The clocks
Hercule Poirot mysteries volume 30
Inspector Poirot has his work cut out for him when Sheila Webb, a young nurse, is sent to the home of a blind woman and finds a dead man behind the couch. To complicate matters, the body is surrounded by four clocks, each reading 4:13. The blind woman and Sheila both protest their innocence, leaving the cunning Poirot to try to make sense of the bizarre circumstances.