"Fantastic Universe" published its first issue in the midst of this publishing boom. The issue, published in digest format, was dated June–July 1953, and was priced at 50 cents. This was higher than any of its competition, but it also had the highest page count in the field at the time, with 196 pages. The initial editorial team was Leo Margulies as publisher, and Sam Merwin as editor; this was a combination familiar to science fiction fans from their years together at Thrilling Wonder Stories, which Merwin edited from 1945 to 1951. The publisher, King-Size Publications, also produced "The Saint Detective Magazine", which was popular, so "Fantastic Universe" enjoyed good distribution from the start—a key factor in a magazine's success. The first issue included stories by Arthur C. Clarke, Philip K. Dick, and Ray Bradbury. According to Donald Tuck, the author of an early SF encyclopaedia, the magazine kept a fairly high quality through Merwin's departure after a year, and through the subsequent brief period of caretaker editorship by Beatrice Jones. Margulies took over the editor's post with the May 1954 issue.