Movie star Mary Marvell consults with Hercule Poirot after receiving threatening letters that warn her to return her diamond, the famous "Western Star," to its rightful owner. As far as she is concerned, she is the rightful owner! Who is this person, the supposed rightful owner of the diamond? On the same day the owner of the "Eastern Star" arrives to consult the famous detective. Amazing! A coincidence?

Librarian's note: this entry is for the story, "The Adventure of the Western Star." Collections of short stories by the author can be found elsewhere on Goodreads. Individual entries, including the characters and settings, for all 51 Poirot short stories, plus a 52nd, "Hercule Poirot and the Greenshore Folly" which was discovered in 2014, can be found by searching Goodreads for: "a Hercule Poirot Short Story."