A Mother's dream, a hunter's misstep and Nathaniel "Natty" Clark ends up back at home... 33 years before he will be born. He can't go back, and he can't forget the future he has already lived. He can only go forward, but that means working for the woman he almost married then, doing the only thing a Naval Academy graduate can do, flying an airship across the Nine Worlds with the Mapmaker, Tessa Chart. But how does he prove to his sister, Queen Fiona, that he really is her brother? The answer may lie in the battered old book he carries in his pack, and the Bible that never leaves Fiona's side.