in the first two issues, which sf historian E.F. Casebeer attributes to Mahaffey's influence. Murray Leinster, Mark Clifton and Mack Reynolds contributed to the early issues, with Robert Bloch, providing "Constant Reader", Theodore Sturgeon, and "The World Well Lost"; a treatment of homosexuality controversial for the 1950s. Once Palmer became more involved with the magazine again the artwork improved, with Finlay, Lawrence Stevens, and Edd Cartier contributing good interior illustrations. In Casebeer's view the Finlay and Lawrence illustrations were the best the magazine had to offer, and he considers the quality of the fiction to have gone downhill after a fairly promising start. In the last three issues the artwork was also weak, with poor quality black-and-white covers and little interior art. The first issue of the revived Other Worlds, in May 1955, had a black-and-white cover picture; later issues returned to colour, though until 1956 these were all reprints of covers from the first incarnation of the magazine. For the cover of the November 1955 issue (the first in pulp format) Palmer reprinted artwork by J. Allen St. John from the back cover of the November 1952 issue; St. John's artwork had saved another Palmer magazine, Fantastic Adventures, from cancellation in 1939. The quality of the fiction dropped from the occasional highs of the first run of Other Worlds. Falcons of Narabedla, the first novel by Marion Zimmer Bradley, appeared in 1957, and Palmer also bought her first Darkover novel, Sword of Aldones, though he never ran it and eventually returned the manuscript to Bradley. Palmer hoped to publish Tarzan on Mars, a novel by Stuart Byrne that used fictional worlds created by Edgar Rice Burroughs, but he was unable to get authorization from the Burroughs estate, and had to shelve the idea. Palmer had long been interested in UFOs, and ran an article in Other Worlds in 1951 titled "I Flew in a Flying Saucer", bylined "Captain A.V.G.", though Lester del Rey reports in his history of sf magazines that it may have been written by Palmer himself. Eventually Palmer decided to drop science fiction; from June 1957 only three issues—June, July and September—included fiction; thereafter it was a nonfiction magazine about UFOs. He wrote in the following issue that he would print news of flying saucers and rumors, and would debunk any claims he could prove fake. Over the next twenty years he included such fringe ideas