Invincible #56 was published by Image Comics on December 1, 2008, as part of a series that began in 2003. Robert Kirkman writes, and art comes from Cliff Rathburn, Eamon O'Donoghue and FCO Plascencia. This 32-page issue features Invincible, Atom Eve, Deborah Grayson, Oliver Grayson and Amber Bennett, among 8 characters cataloged on VerseDB.