| Issue | #81 |
| Published | December 1968 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Stan Lee |
| Genre | superhero |
| Pencils | Jack Kirby |
| Inks | Joe Sinnott |
| Reprinted | in Marvel's Greatest Comics (Marvel, 1969 series) #63; in Fantastici Quattro, I (Editoriale Corno, 1971 series) #78 |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Joe Sinnott |
| Letters | Artie Simek |
| Notes | vs. the Wizard. Crystal (of the Inhuman) joins the FF as Sue's replacement while she is giving birth to Franklin Richards. Sue Richards returns in #95, although she appears again starting in #86. |
| Reprinted | in Marvel's Greatest Comics (Marvel, 1969 series) #63 [edited]; in Fantastici Quattro, I (Editoriale Corno, 1971 series) #78 |