Rise of the Wolf (Wereworld Series #1) by Curtis Jobling

A thrilling series for Ranger's Apprentice fans!

Imagine a world ruled by Werelords—men and women who can shift at will into bears, lions, and serpents. When Drew suddenly discovers he's not only a werewolf but the long-lost heir to the murdered Wolf King's throne, he must use his wits and newfound powers to survive in a land suddenly full of enemies. Drew's the only one who can unite the kingdom in a massive uprising against its tyrant ruler, Leopold the Lion. But the king is hot on Drew's tail and won't rest until he's got the rebel wolf's head.

"Game of Thrones for the tween set." —School Library Journal