| Issue | #149 |
| Published | September 1998 |
| Cover Price | $1.99 |
| Pages | 38 |
| Editing | Jason White (Assistant); Frank Pittarese |
| Notes | Last Issue; Next issue is Mutant X #1; Gatefold Marvel Universe Guide front cover |
| Characters | Havok; Greystone |
| Genre | superhero |
| Pencils | Jeff Matsuda |
| Inks | Jonathan Sibal |
| Notes | Last Issue; Next issue is Mutant X #1; Gatefold Marvel Universe Guide front cover |
| Characters | FEATURE: X-Factor--Havok; Polaris; Shard; Greystone; Archer; Fixx |
| Synopsis | In trying to return to his own timeline, Greystone goes crazy and causes an accident that will dismantle X-Factor forever. |
| Genre | superhero |
| Script | Howard Mackie |
| Pencils | James Fry |
| Inks | Scott Koblish |
| Colors | Glynis Oliver |
| Letters | Richard Starkings and Comicraft; Emerson Miranda |