Invincible Volume 9: Out Of This World Paperback / softback
Allen the Alien returns to Earth as directed by the Coalition of Planets- he's come to gather information from Mark about his father - theViltrumite Traitor.
Meanwhile, the Viltrumites have come to Earth to check up onMark's progress as the reluctant Viltrumite Agent of Earth.
- Format: Paperback / softback
- Pages: 144 pages
- Publisher: Image Comics
- Publication Date: 04/06/2008
- Category: Comics and Graphic Novels
- ISBN: 9781582408279