| Issue | #21 |
| Published | July 1998 |
| Cover Price | $3.95 |
| Pages | 68 |
| Editing | Mike McAvennie; Frank Berrios (Assistant Editor) |
| Notes | double-size issue |
| Characters | Supergirl; General Zod; Mala; Jax-Ur |
| Genre | superhero |
| Pencils | Bruce Timm (signed) |
| Notes | double-size issue |
| Characters | Superman; Supergirl; Kala; Zor; Dar; Del; Pala; Professor Hamilton; Martha Kent; Jonathan Kent; Granny Goodness; Kanto; Darkseid; General Zod; Mala; Jax-Ur; Mad Harriet (flashback); Stompa (flashback); Lashina (flashback) |
| Synopsis | Origin of Supergirl [Kara In-Ze of Argo] |
| Genre | superhero |
| Script | Evan Dorkin; Sarah Dyer |
| Pencils | Bret Blevins |
| Inks | Terry Austin |
| Colors | Lee Loughridge |
| Letters | Kevin Cunningham |