Invincible Volume 9: Out Of This World by Ryan Ottley

Allen the Alien returns to Earth as directed by the Coalition of Planets??9; he's come to gather information from Mark about his father??9; the Viltrumite Traitor. Meanwhile, the Viltrumites have cometo Earth to check up on Mark's progress as the reluctant Viltrumite Agent ofEarth. From visionary creators Robert Kirkman (The Walking Dead), Cory Walker(Science Dog), and Ryan Ottley (Amazing Spider-Man).
Binding: Paperback / softback