Set of 3 books: And Then There Were None. The Murder of Roger Ackroyd. Murder on the Orient Express

And Then There Were None
The novel "And Then There Were None" is one of the greatest detective works in history. Released with a total circulation of over 100,000,000 copies, it ranks fifth on the list of bestselling works of fiction of all time – and an unquestionable first place among Agatha Christie's novels.
Ten completely unrelated people in a mansion on a secluded island... Who summoned them here with a mysterious invitation? Why is someone killing them, one by one, in the most incredible ways? Why is everything so closely intertwined with a cheerful children's rhyme?

The Murder of Roger Ackroyd
At first, the murder of squire Roger Ackroyd did not seem mysterious to the police - everything pointed to the guilt of the victim's stepson. But Hercule Poirot, who recently moved to this area in yet another attempt to retire, thinks otherwise. He begins an investigation, surrounded by many suspects - relatives and acquaintances of the squire, each of whom had a motive for his death. The narrative is told from the perspective of Dr. Sheppard, the last person to see Ackroyd alive...

Murder on the Orient Express
The great detective Hercule Poirot, who was in Istanbul, is returning to England on the famous "Orient Express," which seems to be carrying representatives of all possible nationalities. One of the passengers, an unpleasant American named Ratchett, asks Poirot to be his bodyguard, as he believes that someone intends to kill him. The famous Belgian dismisses this absurd request. The next day, the American is found dead in his compartment, with the doors locked and the window open. Poirot immediately takes on the investigation and discovers that the compartment is full of various clues pointing… to practically all the passengers of the "Orient Express." Additionally, the train becomes completely stuck in snowdrifts in a desolate location. Poirot must find the murderer before the express continues its journey…