| Release: | Dec 1966 |
| Cover: | Dec 1966 |
Re-enter: The Mimic
| Release: | Dec 1966 |
| Cover: | Dec 1966 |
The Mimic attacks the four able-bodied X-Men in an all out assault, wiping the floor with them. It is revealed that he is under the sway of the Puppet Master, who has designs of his own in progress.
| Writer | Roy Thomas |
| Cover Penciller | Werner Roth |
| Cover Inker | Richard 'Dick' Bache Ayers |
| Penciller | Werner Roth |
| Inker | Richard 'Dick' Bache Ayers |
| Letterer | Sam Rosen |
| Editor | Stan Lee |
| Spider-Man | Peter Parker |
| Beast | Henry 'Hank' McCoy |
| Cyclops | Scott Summers |
| Iceman | Robert 'Bobby' Drake |
| Scarlet Witch | Wanda Maximoff |
| Professor X | Charles Francis Xavier |
| Angel | Warren Worthington III |
| Quicksilver | Pietro Maximoff |
| Marvel Girl | Jean Grey |
| Mimic | Calvin Rankin |
| Puppet Master | Phillip Masters |
| Age | Silver Age |
|---|---|
| Format | Digital |
| Series Group | X-Men |
| Genre | Action | Adventure | Super-Heroes |
| No. of Pages | 36 |
| Country | USA |
| Language | English |