| Issue | #121 |
| Published | April 1972 |
| Cover Price | 0.20 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Characters | Mr. Fantastic; Invisible Girl; Human Torch; The Thing; Silver Surfer; Air-Walker |
| Genre | superhero |
| Pencils | John Buscema |
| Inks | Joe Sinnott |
| Notes | Cover inks credit from Sinnott's personal records. |
| Reprinted | in Fantastici Quattro, I (Editoriale Corno, 1971 series) #119; in Marvel Masterworks: The Fantastic Four (Marvel, 2003 series) #12 |
| Characters | FEATURE: Fantastic Four [Mr. Fantastic; Invisible Girl; Human Torch; The Thing]; GUEST: Silver Surfer; VILLAIN: Air-Walker; CAMEO: Galactus |
| Genre | superhero |
| Script | Stan Lee |
| Pencils | John Buscema |
| Inks | Joe Sinnott |
| Letters | Sam Rosen |
| Reprinted | in Marvel Treasury Edition (Marvel, 1974 series) #21; in Fantastici Quattro, I (Editoriale Corno, 1971 series) #119; in Captain Britain (Marvel UK, 1976 series) #24 [pp. 1-9]; in Captain Britain (Marvel UK, 1976 series) #25 [pp. 10-19]; in Marvel Masterworks: The Fantastic Four (Marvel, 2003 series) #12 |