| Issue | #12 |
| Published | January 1988 |
| Cover Price | $1.75 |
| Pages | 32 |
| Editing | Dean Motter (Creator; Designer) |
| Genre | Science fiction; Adventure |
| Pencils | Dean Motter |
| Inks | Dean Motter |
| Colors | Dean Motter |
| Letters | Dean Motter |
| Reprinted | in Mister X: The Definitive Collection (ibooks, 2004 series) #2 |
| Genre | Science fiction; Adventure |
| Script | Dean Motter |
| Pencils | Seth |
| Inks | Seth |
| Colors | Deborah Marks |
| Letters | Deborah Marks |
| Notes | Part 4 of 8 |
| Reprinted | in Mister X: The Definitive Collection (ibooks, 2004 series) #2 |
| Genre | Science fiction; Adventure |
| Script | Dean Motter |
| Pencils | Seth |
| Inks | Seth |
| Colors | Deborah Marks |
| Letters | Deborah Marks |
| Notes | Part 5 of 8. Dean & Seth go completely nuts this chapter. You'll see! |
| Reprinted | in Mister X: The Definitive Collection (ibooks, 2004 series) #2 |