The 20-Story Magazine

The 20-Story Magazine (sometimes known as "The Twenty Story Magazine") was a magazine published by Odhams Press in the U.K. through much of the 1920s and 1930s featuring all types of short stories with emphasis on adventure and mystery and later on romance. Publication began in Jul 1923 and ended in Oct 1940.

Stories by Agatha Christie in the 20-Story Magazine

 * vol. 16 no. 91, Jan 1930 - A Fairy in the Flat/A Pot of Tea, as "It Must Have Been a Fairy".
 * vol. 18 no. 103, Jan 1931 - The Actress.