| Issue | #91 |
| Published | December 1961 |
| Frequency | monthly |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Notes | Distributed to newstands in August or September 1961. This issue includes 10 pages of paid advertisements. Some information on this issue supplied by Tom Lammers and the Atlas/Timely discussion group. Distribution date from Joseph Marek's Marvel Comics Group history website. |
| Characters | Chuck Dawson |
| Genre | science fiction |
| Pencils | Jack Kirby |
| Inks | Dick Ayers |
| Notes | Inks credit from Nick Caputo via the GCD Error List (29 August 2006). |
| Characters | Chuck Dawson; Plant Creature |
| Synopsis | An astronaut sent to Mars encounters a telepathic plant that destroyed all life on Mars and forces him to take it to Earth. The man kills himself by blowing up the spaceship and stranding the plant in space. |
| Genre | science fiction |
| Pencils | Jack Kirby |
| Inks | George Klein |
| Reprinted | in Where Monsters Dwell (Marvel, 1970 series) #18 (November 1972) |
| Characters | Alfred Pook; Harold; Dr. Smith |
| Synopsis | A man becomes confused over directions to the dentist and as a result accidentally pilots an expedition to claim a new planet. |
| Genre | science fiction |
| Pencils | Joe Maneely |
| Inks | Joe Maneely |
| Letters | typeset |
| Notes | Text story with illustration. |
| Reprinted | from Mystery Tales (Marvel, 1952 series) #45 (September 1956) |
| Characters | Bobby Grant; Sally Grant |
| Synopsis | Alien giants menace New York, but retreat at token resistance. The people find a projector and decide that the aliens' giant size was an illusion. The aliens really were giants and left the equipment to disguise their cowardice. |
| Genre | science fiction |
| Pencils | Paul Reinman |
| Inks | Paul Reinman |
| Characters | Joe Phelps |
| Synopsis | A baby-faced criminal gets an ugly mask to disguise himself and intimidate people. When he removes the mask he finds that it has made his face just as ugly as the mask and so easily recognizable. |
| Genre | occult |
| Pencils | Don Heck |
| Inks | Don Heck |
| Notes | This story is a retelling of "Who Hides Beneath My Mask?" drawn by Dick Ayers, from Tales of Suspense (Marvel, 1959 series) #6 (November 1959). |
| Reprinted | in Where Monsters Dwell (Marvel, 1970 series) #18 (November 1972) |
| Synopsis | A man frantically tries to convince people in a park that he saw a statue move. When he is unsuccessful he is satisfied, since now he knows that his alien people's plan to infiltrate Earth with soldiers disguised as statues will work. |
| Genre | horror |
| Script | Stan Lee |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |