| Issue | #81 |
| Published | 31 August 1968 |
| Cover Price | 9d |
| Pages | 40 |
| Editing | Alf Wallace [as Alf]; ? [as Bart]; Stan Lee (original editor) |
| Notes | Iceman artwork on the cover is not from the 'Now Strikes the Sub-Human!' strip but cut and pasted from another reprint source |
| Characters | Iceman |
| Genre | Superhero |
| Letters | Typeset |
| Notes | Iceman artwork on the cover is not from the 'Now Strikes the Sub-Human!' strip but cut and pasted from another reprint source |
| Characters | X-Men [Angel; Cyclops; Iceman; Beast; Marvel Girl]; Grotesk; Professor Xavier |
| Genre | Superhero |
| Script | Roy Thomas |
| Pencils | Don Heck |
| Inks | George Tuska |
| Letters | Sam Rosen |
| Editing | Stan Lee (original editor) |
| Reprinted | from X-Men (Marvel, 1963 series) #41 (February 1968) |
| Letters | Typeset |
| Letters | Typeset |
| Characters | The Avengers [Hawkeye; Quicksilver; Scarlet Witch; Captain America; Goliath; Wasp]; Enchantress; Hercules |
| Genre | Superhero |
| Script | Roy Thomas |
| Pencils | Don Heck; Gil Kane |
| Inks | George Roussos [as George Bell]; Gil Kane |
| Letters | Artie Simek |
| Editing | Stan Lee (original editor) |
| Notes | The splash page of this story is an adapted reprint of the cover featuring Gil Kane artwork |
| Reprinted | from Avengers, The (Marvel, 1963 series) #38 (March 1967) |
| Letters | Typeset |
| Letters | Typeset |
| Notes | Spot the deliberate mistake in this issue |
| Letters | Typeset |
| Characters | Dr. Livingstone |
| Notes | Advertisement in educational comic strip form for the Wayfinder Adventure Boot |
| Characters | High Evolutionary; Sir Lepard; Quicksliver; Scarlet Witch; Jane Foster; Man-Beast |
| Genre | Superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Vince Colletta |
| Letters | Sam Rosen |
| Editing | Stan Lee (original editor) |
| Reprinted | from Thor (Marvel, 1966 series) #134 (November 1966) |
| Letters | Typeset |
| Characters | Executioner; Enchantress; Volstagg; Hogun; Oldar; Igor; Rick Jones; Thor; Silver Surfer |
| Genre | Superhero |
| Script | Gary Friedrich |
| Pencils | Marie Severin |
| Inks | George Tuska; Syd Shores |
| Letters | Artie Simek |
| Editing | Stan Lee (original editor) |
| Reprinted | From Incredible Hulk (1968 series) #102 (April 1968) |
| Genre | Superhero |
| Letters | Typeset |
| Notes | Full-color back cover |