| Issue | #21 |
| Published | Early March 2007 |
| Cover Price | 2.99 USD |
| Pages | 36 |
| Editing | Mike Carlin; Tom Palmer, Jr. (Associate Editor) |
| Characters | Hawkman [Carter Hall] |
| Genre | superhero |
| Pencils | Walter Simonson |
| Inks | Walter Simonson |
| Characters | Hawkman [Carter Hall]; Adam Strange; Blackfire; Starfire (cameo) |
| Synopsis | Hawkman discovers that the Thanagarians still have not returned to their homeworld and that Rann is gripped in a civil war, fomented by Blackfire. |
| Genre | superhero |
| Script | Walter Simonson |
| Pencils | Walter Simonson |
| Inks | Walter Simonson |
| Colors | ? [as I.L.L.] |
| Letters | John Workman |
| Notes | Story follows up on plot threads from The Rann / Thanagar War (DC, 2005 series) and Infinite Crisis (DC, 2005 series). |