2015 - Contra [The Omni Duology - Volume 2] (Paperback) ISBN-13: 9781513704579 ISBN-10: 1513704575 Genres: Literature & Fiction, Science Fiction & Fantasy ? 2015 - Omni [The Omni Duology - Volume 1] (Paperback) ISBN-13: 9781620158869 ISBN-10: 1620158868 Genre: Teen & Young Adult ? |