The Agatha Christie Omnibus of Crime is an omnibus edition of Agatha Christie novels released by Collins in February 1932. Included in the omnibus are four novels published in the late 1920s after Christie had switch her publisher away from John Lane to Collins: The Murder of Roger Ackroyd, The Mystery of the Blue Train, The Sittaford Mystery, The Seven Dials Mystery. The title was in hardcover format and retailed for 7/6. Examples are very scarce today and not much is known about the title.
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