| Issue | #3 |
| Published | May 1970 |
| Frequency | bi-monthly |
| Cover Price | 0.15 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Characters | Grottu |
| Genre | monsters |
| Pencils | Marie Severin (signed) [as 7] |
| Inks | Bill Everett (signed) [as EV] |
| Notes | Artists' signatures found to the right of the bottom of the stairs. |
| Characters | Frank [Ulysses Bloodstone] (earliest published appearance according to later continuity); Lynn Avery (only appearance); Kasenga (only appearance); Grottu (introduction, origin) |
| Synopsis | The radiation from atomic bomb tests mutates a common ant, increasing his size and strength a thousand fold, and grants him human-level intellect. Calling himself Grottu, he declares himself king of all insects, and sets about on a plan to conquer the world, starting with Kenya. His efforts are foiled by an adventurer, who succeeds in turning Grotto's ant followers against him, leaving him for dead. |
| Genre | monsters |
| Pencils | Jack Kirby |
| Inks | Bill Everett |
| Notes | Grottu next appears in Marvel Monsters: Monsters on the Prowl (Marvel, 2005 series) #1 (December 2005). In later retcons it is established that Grottu's creation was planned by the Deviants. Unconfirmed writer and letterer credits removed pending some information supporting an attribution (17-02-2010). |
| Reprinted | from Strange Tales (Marvel, 1951 series) #73 (February 1960) |
| Characters | Prof. Reynolds; Colossus [supercomputer] (only appearance for both) |
| Synopsis | An advanced supercomputer turns Earth into a utopia, but suspicion remains, only to be inflamed when it is found to be building a giant robot. Humanity turns on the computer and destroys the robot, only to find that it was intended to replace the supercomputer, which breaks down, leaving humanity without its intelligence. |
| Genre | science fiction |
| Pencils | Jack Kirby |
| Inks | Steve Ditko |
| Notes | Narrated in the first person. |
| Reprinted | from Strange Tales (Marvel, 1951 series) #72. |
| Synopsis | An ugly man rejected by society applies for a job in a freak show. It turns out to be a ruse by a race of aliens who are uniformly gorgeous, and so want a man with an ugly face they find fascinating to marry their queen. |
| Genre | science fiction |
| Pencils | Paul Reinman |
| Inks | Paul Reinman |
| Notes | Narrated in the first person. |
| Reprinted | from Strange Tales (Marvel, 1951 series) #78 (November 1960) [reformatted and abridged] |
| Synopsis | A man happens upon a Martian spy in human form scouting Earth for an invasion but cannot get the authorities to believe him. He tracks down and kills the Martian, revealing that he himself is a Venusian agent in disguise working to protect Earth. |
| Genre | science fiction |
| Pencils | Jack Kirby (signed) |
| Inks | Dick Ayers (signed) |
| Notes | Narrated in the first person. Unconfirmed writer and letterer credits removed due to lack of clear attribution (19-02-2010). |
| Reprinted | from Strange Tales (Marvel, 1951 series) #78 (November 1960) |