Hermione Lytton Gore

In the novel Three Act Tragedy, Hermione “Egg” Lytton Gore is an attractive, young, single woman, known by the nickname of "Egg." She is the daughter of Lady Mary Lytton Gore. She lives at Rose Cottage, Loomouth, with her mother.

She bears little resemblance to her mother, as she is of a much more energetic type. She has dark hair that curls crisply in her neck, grey eyes, and is of medium height.

Lady Mary explains to Mr Satterthwaite that the nickname "Egg" came about because when Hermione was young, she would try to stand up and would fall over, just like an egg.

Personality
Hermione "Egg" Lytton Gore is ambitious on almost every subject which she had happened to come across. Unfortunately, the majority of the time she failed to succeed in her goal. She had a slight hatred towards Hercule Poirot as she wanted to solve the crime, and he got in her way. She also doesn't behave as a woman was supposed to at the time, as she needs a good violent murder to keep her on her feet, earning her a rash and strong-willed reputation in the Three Act Tragedy. Although she constantly is shown as a novice detective, her childish demeanor is what she is remembered for by the readers.

Position
Egg acted as a paramour to Sir Charles Cartwright. She was an aspiring detective, yet lacks the necessary ability to get anywhere the case.

Portrayals
In Murder in Three Acts (1986), the character is played by Emma Samms. The character name is changed to "Jennifer Eastman" but still with the same nickname "Egg".

In the film adaptation of Three Act Tragedy in Series 12 of ITV's Agatha Christie's Poirot drama series, the part of Egg is played by Kimberley Nixon.

In Drame en trois actes, the TV film adaptation of the novel by France Télévisions, the parallel character is the main cast character Marlène Leroy.