Wereworld: Shadow of the Hawk (Book 3), Paperback/Curtis Jobling

Drew Ferran, the rightful king of Westland, is trapped. Enslaved by the Goatlord Kesslar, young werewolf Drew finds himself on the volcanic isle of Scoria, forced to fight in the arena for the Lizardlords. With the help of an unlikely ally, he must find a way to break free - but who has ever managed to escape?