Cover displays a "Spy Thriller" logo in the top left corner.
Text reads: "Don't miss:
"It was only a harmless looking freighter headed for an American port. But secret agent Doug Grant knew that unless it was stopped it could plunge the entire world into war! "The Secret Invasion!"
"Plus these real-life spy thrillers:
"The Case of the Strange Disc!
"Horror in Hakim's Harem!
"A Date with Death!"
Coloring credit per Stan Goldberg.
Art credits from atlastales.com