The Big Four (novel)
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The Big Four is a mystery novel by Agatha Christie, first published in the UK by William Collins & Sons on 27 January 1927 and in the US by Dodd, Mead and Company later in the same year. It features H
Dust-jacket illustration of the first UK edition
The Mystery of the Blue Train is a mystery novel by British writer Agatha Christie, first published in the United Kingdom by William Collins & Sons on 29 March 1928 and in the United States by Dodd, M
Dust-jacket illustration of the first UK edition
