A key issue noted for First full appearance of Volcanikka. Invincible #107 was published by Image Comics on December 1, 2013, as part of a series that began in 2003. Robert Kirkman and Sean Mackiewicz write, and art comes from John Rauch and Ryan Ottley. This 32-page issue features Invincible, Atom Eve, Robot, Monster Girl and Bulletproof, among 16 characters cataloged on VerseDB.