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In the novel Ordeal by Innocence, Christina “Tina” Argyle is an adopted daughter of Leo and Rachel. She came to them at age 3, and remembers no other parents. She works in the library in a Redmyn, and has her own place there. Her birthmother was English and her father was of Indian origin, and she has a calm personality.

She drives a Messerschmitt car.

She was stabbed, but survived.


Ordeal by Innocence (1984)[]

In the Cannon Films 1984 adaptation, Tina is portrayed by Phoebe Nicholls. Here she has moved out of the house and is already living together with Mickey in town. They have a motor mechanic business on the Dartmouth waterfront. Philip Durrant saw Tina go up to the house on the night of Rachel Argyle's murder. She admits this to Arthur Calgary and says that she had gone to get some sheets because they were hers and she needed them. No one let her in because she had a key. As for the sheets, she did not get them in the end because she changed her mind. While in the house, she heard two people whispering to each other. She did not tell the police at the time because she feared that the two were Leo Argyle and Gwenda Vaughan. Calgary tells Inspector Huish and he begins questioning family members about it. This unfortunately results in the killer planning Tina's murder. Mickey is lured away with a fake phone call and Tina is struck dead with a wrench. In this adaptation, Tina did not survive.

Agatha Christie's Marple (2007)[]

In the 2007 ITV adaptation which was episode 2 of series 3 of Agatha Christie's Marple, Tina Argyle is portrayed by Gugu Mbatha-Raw. Her plot role is slightly smaller than in the original although the portrayal still tracks closely. Like in the original she is a librarian and lives with Micky Argyle in town. Rachel Argyle had got Tina a job in Scotland to separate her from Mickey with whom she is romantically attached. On the night of the murder she had gone to Sunny Point to speak to her mother. She later lied about her whereabouts to the police, and like in the original, Cyril Price spotted her vehicle, which in this case was a motorbike. Unlike the original, Tina is not attacked. This is partly because, by the time she becomes a threat to the murderer, Tina had already been taken into police custody for questioning.

Les Petits Meurtres d'Agatha (2009)[]

In Am Stram Gram, the France Télévisions adaptation of Ordeal by Innocence for the TV series Les Petits Meurtres d'Agatha Christie, the parallel character is Tina Vallabrègues.