The Monogram Murders is a 2014 mystery novel by British writer Sophie Hannah featuring characters created by Agatha Christie.

[2][4] While dining at a London coffee house, Hercule Poirot meets Jennie Hobbs, a young woman who claims she will soon be murdered and nothing can be done to stop it.

Catchpool mentions he is investigating the murders of three guests at the Bloxham Hotel – Harriet Sippel, Ida Gransbury and Richard Negus – who were found dead in their respective rooms with a monogrammed cufflink in their mouths.

The two learn all three victims arrived at the hotel on the same day, their rooms booked and paid for ahead of time, and lived in a village called Great Holling.

Additionally, Negus was engaged to Ida but left Great Holling in 1913 after the deaths of former vicar Patrick Ives and his wife, Frances.

Nancy refuses to provide details when pressed about Great Holling, but Poirot and Constable Stanley Beer find a pair of keys that correspond to two of the victims' hotel rooms.

Poirot meets with Catchpool at the Bloxham upon receiving news of a fourth murder, finding a pool of blood, a monogrammed cufflink, and Jennie's hat.

After traveling to Great Holling in response to a serious attack on Margaret and having a conversation with village doctor Ambrose Flowerday, Poirot declares the case resolved.