The author analyzes literary allusions in detective novels by Agatha Christie. For the first time, to works of W. Shakespeare, C. Dickens, P. G. Wodehouse, K. Chesterton are considered detail. Many established for time. As a material writing this article, large number were used, among which there also rarely texts English writer. meaning "Twelfth Night" novel "The Sad Cypress" is revealed detai...