| Issue | #42 |
| Published | August 2009 |
| Cover Price | 2.99 USD |
| Pages | 36 |
| Editing | Matt Idelson; Wil Moss (assistant editor) |
| Characters | Supergirl |
| Genre | superhero |
| Pencils | Joshua Middleton |
| Inks | Joshua Middleton |
| Colors | Joshua Middleton |
| Reprinted | in Supergirl: Who is Superwoman? (DC, 2009 series) #[nn] |
| Characters | Supergirl; General Sam Lane; Superwoman [Lucy Lane] (flashback); Codename: Assassin; Lana Lang; Lois Lane; Inspector Henderson (cameo) |
| Synopsis | After admitting to Lois that she is responsible for Lois' sister's death, Supergirl leaves Earth for New Krypton. |
| Genre | superhero |
| Script | Sterling Gates |
| Pencils | Jamal Igle |
| Inks | Jon Sibal |
| Colors | Nei Ruffino |
| Letters | Jared K. Fletcher |
| Reprinted | in Supergirl: Who is Superwoman? (DC, 2009 series) #[nn] |