| Issue | #29 |
| Published | August 1974 |
| Frequency | bi-monthly |
| Cover Price | 0.25 USD |
| Pages | 36 |
| Editing | Roy Thomas ? |
| Characters | Sixth Dimension Alien |
| Genre | science fiction; monsters |
| Pencils | Jack Kirby |
| Inks | Dick Ayers; John Romita (additional material) |
| Notes | Male figure on the original cover was removed and replaced by female figure, and another male head was added at bottom right corner. Alteration artist unknown (possibly John Romita ?) |
| Reprinted | from Tales to Astonish (Marvel, 1959 series) #34 (August 1962) [altered] |
| Characters | "Paul Marshall"; Sixth Dimension Alien |
| Synopsis | An alien from another dimension threatens a science fiction writer, but the writer is secretly a hostile alien from a different dimension. |
| Genre | science fiction; monsters |
| Pencils | Jack Kirby |
| Inks | Dick Ayers |
| Editing | Stan Lee (original story) |
| Notes | Original splash page of story is replaced by the original cover with new lettering of the title replacing the cover logo. |
| Reprinted | from Tales to Astonish (Marvel, 1959 series) #34 (August 1962) |
| Synopsis | A man encounters a lighthouse keeper who is a monster in disguise. |
| Genre | monsters |
| Pencils | Joe Sinnott |
| Inks | Joe Sinnott |
| Editing | Stan Lee (original story) |
| Reprinted | from Mystic (Marvel, 1951 series) #8 (May 1952) |
| Synopsis | An alien from a methane world learns the habits of earthmen to spy upon them for an upcoming invasion. When he returns to his world to give his report, he automatically strikes a match to light a cigarette while waiting. |
| Genre | science fiction |
| Pencils | Bill Walton |
| Inks | Bill Walton |
| Editing | Stan Lee (original story) |
| Reprinted | from World of Suspense (Marvel, 1956 series) #3 (August 1956) |
| Characters | Horace |
| Synopsis | A practical joker thinks that aliens are his victims playing a joke on him, but they are real aliens and take him to an offworld zoo. |
| Genre | science fiction |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |
| Editing | Stan Lee (original story) |
| Reprinted | from Amazing Adventures (Marvel, 1961 series) #5 (October 1961) |