Armchair Fiction presents extra large editions of classic science fiction double novels. The first novel is "Treasure on Thunder Moon," another fine tale by Edmond Hamilton. John North was through as a space pilot and he knew it. He'd been told that at age 37 he was too old to fly anymore. His strength and his reflexes just weren't what they used to be. However, when a fluke opportunity raised its head, he and his aging space veteran friends found...