| Issue | #27 |
| Published | April 2005 |
| Cover Price | $2.50/$3.85 CAD |
| Pages | 36 |
| Editing | Peter Tomasi; Harvey Richards (assistant) |
| Characters | Aquaman; Ocean Master |
| Genre | Superhero |
| Pencils | Patrick Gleason |
| Inks | Christian Alamy |
| Colors | Nathan Eyring |
| Characters | Aquaman [Arthur Curry; Orin]; Aquagirl [Lorena Marquez]; Anton Geist; Ocean Master [Orm Marius]; Ms. Tartel; Mr. J |
| Synopsis | Ocean Master has taken over Aquaman's life, and the real Aquaman is now the Ocean Master! Chaos erupts as Aquaman realizes all is not as it seems, especially when a secret from his past comes back to haunt him in ways he could never have imagined! [per solicitation] |
| Genre | Superhero |
| Script | John Arcudi |
| Pencils | Patrick Gleason |
| Inks | Christian Alamy; Mick Gray |
| Colors | Nathan Eyring |
| Letters | Jared K. Fletcher |
| Letters | Typeset |
| Notes | DC house ads for February 2005. Spotlight on DC Countdown. |