not kill herself but was murdered. The inspector questions him alone, confirms his suspicions, and asks for his help. The rope which they found around her neck was much thicker than the marks of the cord that killed her. Thinking carefully, Satterthwaite remembers seeing smoke coming from under Mrs Graham's door. He investigates the cause. He finds some incompletely burnt letters in the grate; there are enough fragments to show they are from Mabelle to Roger about an affair between them. He confronts Mrs Graham, who admits that she burnt them to prevent trouble for her engaged son. Roger says he did not kill Mabelle, and admits he had been bewitched by her, but had not told her it was ended last night. Satterthwaite finds Mabelle's ukulele and strums it. It is out of tune; Doris tunes it, but breaks the string, noticing it is an A-string, one size too large. Satterthwaite suddenly realises that the murder was committed with the original string, and confronts quiet David Keeley in the library. He was the last person downstairs, switching off the lights as Mabelle returned for her instrument. He quickly killed her and then later in the night returned to move the body to her own room. Why did he do it? Laughing insanely about how no one notices him, Keeley admits the crime as Winkfield walks into the room. Satterthwaite meets Quin on the train home. He sadly admits he failed to prevent Mabelle's death. Quin replies that he did save the two young men from being wrongly accused of the crime, and asks if there are not greater evils than death. Satterthwaite closes his eyes, thinking of Mabelle, and when he opens his eyes, Mr Quin has already gone; but there is a bird carved from a blue stone where Quin had been seated, an enchanting piece of art. The World's End Mr Satterthwaite is in Corsica with the Duchess of Leith, a strong and generous woman who can be miserly on the small expenses. At their first meal, the duchess spots Naomi Carlton Smith, a young artist who is a cousin to her. She was involved with a young writer who, the year before, was accused of stealing jewellery and imprisoned. Mr Satterthwaite likes her art, and buys a drawing from her. The three arrange a picnic for the next day with a fourth person, Mr Tomlinson, who