The full moon revealed the beast within her. Now she has become the monster they most fear.

Katja's skinshifting abilities are becoming more powerful, and more dangerous. A rare madness is overtaking the werecat's mind, making her more savage and unpredictable with each full moon.

As war rages on the Sylvan Continent, Katja and her allies must seek out the sacred Keystones and use their power against the deadwalkers. How can Katja defend her packmates from the dangers of their new journey when she can't even protect them from herself? What hope does she have for a cure when a vampire carries the key to recovering her sanity?