Other well-known writers occasionally appeared, including Harlan Ellison, Cyril M. Kornbluth, Algis Budrys, and Harry Harrison.

In 1955, Irwin Stein, the owner of Royal Publications, launched two magazines: Infinity Science Fiction and Suspect Detective Stories.

Shaw was knowledgeable about science fiction (sf), and put more of his efforts into Infinity, which established itself sufficiently for Stein to continue publication for several years.

[1] This led some readers to believe that the magazine was a revival of the Science Fiction Adventures edited by Lester del Rey and Harry Harrison for nine issues between 1952 and 1954, but there was no connection.

[1] SF Adventures and Infinity both began on a bimonthly schedule, which meant that they stayed on newsstands for two months at a time, helping sales.

Stein was unwilling to give up this benefit completely so, in 1957, when he decided to increase the magazines' frequency, he put them both on a six-week schedule, but kept the cover date showing a single month.

Stein agreed, but it took a year to make the arrangements, so the first issue of the British Science Fiction Adventures appeared in early 1958.

Ashley considers Silverberg's contributions to be among the best work of his early career; it included the "Chalice of Death" series, three stories written as by Calvin M. Knox that appeared in book form as Lest We Forget Thee, Earth in 1958.

[8] Harlan Ellison appeared regularly, and Shaw also obtained stories from Algis Budrys, Cyril Kornbluth, Harry Harrison, and John Brunner.