Death on the Nile

Agatha Christie's most daring travel mystery.
The tranquility of a lovely cruise along the Nile is shattered by the discovery that Linnet Ridgeway has been shot through the head. She was young, stylish and beautiful, a girl who had everything – until she lost her life.
Who's also on board? Christie's great detective Hercule Poirot. He recalls an earlier outburst by a fellow passenger: ‘I’d like to put my dear little pistol against her head and just press the trigger.’ Despite the exotic setting, nothing is ever quite what it seems…
Librarian's note: this Hercule Poirot novel should not be confused with the short story of the same name. Also by Christie. But it starred Parker Pyne. It came out several years earlier. The title and locale are the same, but the contents are quite different. It is not a precursor of this story. The Pyne short story can be found elsewhere on Goodreads.