Dead Man's Mirror

 Dead Man's Mirror (Murder in the Mews; 1937) by Agatha Christie

Short collection of three novellas--one of many variations of US editions of the original collection, Murder in the Mews. We see various themes which Christie liked to use in her stories--from the clues that Poirot finds important that Riddle, Japp, and other officials tend to brush off or overlook--to the beautiful woman as victim (in the vein of Evil Under the Sun or Death on the Nile). Christie is still the master of misdirection and it's easy to look where she wants you to look rather than at the genuine clues. ★★★★

"Dead Man's Mirror": Poirot is summoned by Gervase Chevenix-Gore to come and help him with a delicate family matter. But there is no time for the men to meet because just after Poirot arrives at Hamborough Close, his host's body is discovered in the body. On the face of it, it is suicide--doors and window locked, the gun just below the man's hand, and a note with the word "Sorry." Poirot, however, believes the room tells a different story and works to prove that murder has occurred. As he tells Major Riddle, the Chief Constable, everything depends on the mirror....

"Murder in the Mews": A second locked room mystery in this collection. Mrs. Allen, a young widow, is found shot to death in her locked sitting/bedroom in the flat she shares with a friend. The gun is in her hand--but again, suicide is impossible. The gun is in her right hand--she was shot in the left temple. Though the gun is in her hand, it wasn't gripped firmly enough to produce fingerprints. And then there's the cigarettes and the enamel from a man's cufflink. Japp sees murder and thinks he's got his man. But Poirot sees other clues that point in a different direction...

"Triangle at Rhodes": While vacationing at Rhodes during the slow season, Poirot becomes involved in 
a murder resulting from a love triangle that seems to focus on Valentine Chantray--a beautiful young woman who attracts young men like bees to flowers. When Valentine is poisoned in an apparent murder gone wrong, Poirot reveals that everyone has been looking a the wrong triangle...

1st line (first story): The flat was a modern one.

Last line (last story): "She chose--to remain..."
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Deaths = 7 (four natural; two shot; one poisoned)