The Battle for Perodia: A Branches Book (the Last Firehawk #6)

It's time to fight for the enchanted land of Perodia! Tag, Skyla, and Blaze call on their friends to help them in the epic battle against Thorn. Blaze will finally learn how to use the magical Ember Stone... but will its magic be strong enough to defeat Thorn and his powerful army of spies?