Tracker is a hunter, known throughout the thirteen kingdoms as one who has a nose - and he always works alone. But he breaks his own rule when, hired to find a lost child, he finds himself part of a group of hunters all searching for the same boy. Each of these companions is stranger and more dangerous than the last, from a giant to a witch to a shape-shifting Leopard, and each has secrets of their own.
As the mismatched gang follow the boy's scent from perfumed citadels to infested rivers to the enchanted darklands and beyond, set upon at every turn by creatures intent on destroying them, Tracker starts to wonder: who really is this mysterious boy? Why do so many people want to stop him