The Hollow

Agatha Christie's novel "The Hollow" was published in 1946 and features detective Hercule Poirot as the lead character. The story revolves around a murder that takes place in a country house called "The Hollow," which is owned by the Angkatell family. The victim is a young doctor named John Christow who is found shot to death beside the swimming pool.

The book's main suspects are the people who were present at the scene of the crime. The victim's wife Gerda Christow is a possible suspect, as she had been in a relationship with the victim's friend and cousin Henrietta Savernake. Other possible suspects include Edward Angkatell, the owner of the house, who seems to be hiding something, and Lucy Angkatell, his eccentric cousin who has a habit of manipulating people.

As Poirot investigates the case, he discovers a tangled web of relationships and motives that make the murder difficult to solve. He also has to contend with his own personal feelings as he becomes increasingly drawn to Henrietta.

In the end, Poirot unravels the mystery and reveals the killer's identity in a dramatic denouement. The motive behind the murder is revenge, as the killer had been wronged by the victim in the past.

Overall, "The Hollow" is a classic whodunit that showcases Christie's skill in creating intricate plots and memorable characters. It has been adapted for television and film several times and remains a popular read for fans of the mystery genre.