First Hardcover Edition/First Printing of both books with the 1338537 code to the rear panel and the artist credit to the back flap of "Leviathan" and the 1359346 code to the rear panel and artist credit to the back flap of "Caliban"; both books Fine in Fine dust jackets. Both books SIGNED by Daniel Abraham and Ty Franck (James S. A. Corey is a pen name for both) to the title pages.Both outstanding copies of these novels, the first and second volumes in the Expanse series, now a major mini-series. These are the True First hardcover editions, published by Orbit in 2011 and 2012 for the Science Fiction Book Club (SFBC), published simultaneously with a trade paperback from Orbit. Both copies are in Fine/Fine condition with only a couple of faintly soiled areas to the text blocks, a hint of foxing to the Caliban page edges, and slight rubbing to the panel edges. Promotional material and a flyer from the signing event laid in. First hardcover editions of these books are uncommon,…