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The Regatta Mystery and Other Stories is a short story collection written by Agatha Christie and first published in the US by Dodd, Mead and Company in 1939. The first edition retailed at $2.00. The stories feature, with one exception, Hercule Poirot, Miss Marple or Parker Pyne, Christie's famed detectives. The …

The Rose and the Yew Tree is a tragedy novel written by Agatha Christie and first published in the UK by William Heinemann Ltd in November 1948 and in the US by Farrar & Rinehart later in the same year. It is the fourth of six novels Christie published under the nom-de-plume Mary Westmacott.

The Secret Adversary is a work of detective fiction by Agatha Christie first published in the United Kingdom by The Bodley Head in January 1922 and in the United States by Dodd, Mead and Company later in that same year. The UK edition retailed at seven shillings and sixpence and the US edition at $1.75. It is her …