Catamorphs book one

This is a book about a cat named Ember and is one of the people who are born with cat features, named catamorph. They are kept hidden by their parents to be sure they wouldn't be found out from bad people. The cat people grow up, and learns the secret about themselves. They notice this tightness in the world, and they discover something like them. They discovers wolf humans named wolfomorphs. The wolves seek for the most powerful catamorph for their leader, Skull. He seeks power and wants dominance over the two other tribes, humans, and Catamorphs. Now it's Embers and her friends job to save all species from a devastating ending.