Note: The Master Thriller Series, consisting of 32 titles, was a UK publishing series in pulp format, published quarterly by World's Work and edited by H. Norman Evans. From The Encyclopedia of Fantasy: Each issue was complete in itself and represented a different fictional category, so might arguably be called a pulp anthology series. Most issues featured reprints from US Magazines with occasional new UK stories (more prevalent in later issues). The series began with Tales of the Foreign Legion (anth July 1933; all issues were undated). Those that published Supernatural Fiction were #6 Tales of the Uncanny (anth September 1934), #17 Tales of Terror (anth July 1937), #20 Tales of the Uncanny 2 (anth April 1938), #23 Tales of the Uncanny 3 (anth January 1939) and #32 Tales of Ghosts and Haunted Houses (anth December 1939). Outside the series were two associated single-issue pulps: Fireside Ghost Stories (anth 1938) and Ghosts and Goblins (anth 1938). Although unremarkable, these were the UK's first specialist Ghost-Story magazines. There is a discrepancy in that the Encyclopedia of Fantasy shows #23 to be the third volume of Tales of the Uncanny and philsp.com has #23 as Tales of the North-West Mounted Police with no third "Uncanny" volume.