Gaffney, who played Robbie Jackson in EastEnders, is starring in the Agatha Christie murder-mystery at Derby Theatre.

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Agatha Christie is one of the best-selling authors of all time.

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Following the deaths of Agatha Christie's son-in-law Anthony Hicks in 2004 and daughter Rosalind in 2005, the house and its contents were also gifted to the trust - this summer was marked its second season of opening to the public.

BBC: Greenway does peach of a job on fruit house restoration

London, England (CNN) -- She is one of the best-known crime writers of all time but few know the extent of Agatha Christie's archaeological pedigree.

CNN: Agatha Christie's secret life as an archaeologist

The house was Torquay-born Agatha Christie's holiday home from 1938 until 1959.

BBC: Greenway does peach of a job on fruit house restoration

An amazingly successful contrivance: this Agatha Christie-style house-party murder mystery, set in 1932, plants itself deep into social reality and achieves the kind of candor about class and sex that Christie would never have been capable of.

NEWYORKER: Gosford Park