Janus

On the distant jungle world of Janus, Naill Renfro hopes to work off his debts and begin his life anew. But soon Naill begins to remember another place, in another time--when he was not human, but something else: a native of Janus, in the days before its civilization fell. Embarking on a quest to learn more of his alien heritage, Naill will discover the mysterious source of his strange new memory, the fate of the others of his kind--and the story of human invaders who devastated the once-proud world!