Distributed to newstands in July 1960 This issue includes 10 pages of paid advertisements (pages 2, 9, 15, 19, 25, 27, 33-36 of comic including inside front cover, inside back cover and back cover) ; pages of comic not numbered. All new stories in this issue are narrated in the first person unless otherwise specified.
Distribution date from Joseph Marek's Marvel Comics Group history website.
Nick Caputo suspects that Ditko added the three figures crawling on Krang. However, Steve Ditko (in letter to Chris Boyko, 6 December 2014) stated that he does not know who inked the cover and did not do any work on this cover.
This is one of the first two 'feature-length' (13 page) monster stories published by Marvel (the other was "I Was the Slave of the Living Hulk!" published simultaneously in Journey Into Mystery (Marvel, 1952 series) #62). Three months later, two-part, 13(and occasionally 18 page) stories would headline all four Marvel SF anthologies. The following year a fifth title (Amazing Adventures, 1961 series)would follow the format.
Job number from Dr. Michael J. Vassallo via the Atlas/Timely discussion group. Story is pages 3-7, 10-11 of comic (pages of story numbered 1 to 7).
Story is pages 12-14, 16-18 of comic (pages of story numbered 8 to 13).
Text story with two illustrations. Text story is pages 8, 26 of comic (pages of story not numbered).
Job number from Dr. Michael J. Vassallo via the Atlas/Timely discussion group. This story is retold in issue #29 (March 1962) as "What Happened to Harry?" drawn by Dick Ayers. Story is pages 20-24 of comic (pages of story numbered 1 to 5).
Narrated in the third person. Job number from Dr. Michael J. Vassallo via the Atlas/Timely discussion group. Story is pages 28-32 of comic (pages of story numbered 1 to 5).