| Issue | #12 |
| Published | February 1976 |
| Cover Price | 0.25 |
| Pages | 36 |
| Editing | Marv Wolfman |
| Notes | Letters page replies by Steve Englehart. Letters page letter from Peter Gillis and Dean Mullaney. |
| Pencils | Gene Colan |
| Inks | Tom Palmer |
| Letters | Dan Crespi |
| Notes | Letters page replies by Steve Englehart. Letters page letter from Peter Gillis and Dean Mullaney. |
| Script | Steve Englehart |
| Pencils | Gene Colan |
| Inks | Tom Palmer |
| Colors | Tom Palmer |
| Letters | Tom Orzechowski |
| Notes | Strange confronts The Ancient One & the masked Dr. Strange. Mordo, through a common madness, gains control of Aged Genghis powers & his own. The Earth, in the grip of madness, is destroyed! |