| Release: | Jan 1988 |
| Cover: | Jan 1988 |
The Fall of the Mutants - Masks
| Release: | Jan 1988 |
| Cover: | Jan 1988 |
X-Factor is now aboard Ship, where they meet Apocalypse and all four of his Horsemen. They are unprepared for Death, and are quickly captured.
| Writer | Louise Simonson |
| Cover Artist | Walter Simonson |
| Cover Colorist | Petra Goldberg-Scotese |
| Penciller | Walter Simonson |
| Inker | Bob Wiacek |
| Colorist | Petra Goldberg-Scotese |
| Letterer | Joe Rosen |
| Editor | Robert Harras |
| Editor in Chief | Tom DeFalco |
| Beast | Henry 'Hank' McCoy |
| Cyclops | Scott Summers |
| Iceman | Robert 'Bobby' Drake |
| Marvel Girl | Jean Grey |
| Apocalypse | En Sabah Nur |
| Caliban | August Hoffer |
| Famine | Autumn Rolfson |
| Death | Warren Worthington III |
| War | Abraham Lincoln Kieros |
| Ship | |
| Pestilence | Plague |
| Age | Modern Age |
|---|---|
| Format | Comic |
| Series Group | X-Factor |
| Genre | Action | Adventure | Super-Heroes |
| No. of Pages | 32 |
| Country | USA |
| Language | English |