Hollyclaw has a certain power that no cat knows about except her sister which is her best friend. When it happens her light blue eyes darken and her light brown pelt turns white! Anger is the main way to signal it and when it starts Hollyclaw can't control it! She becomes a totally different cat and no one recognizes her except for one cat who sees her as the cat she turns into. The dreaded leader of the Dark Forest, Froststar. Hollyclaw must learn to control it or unleash it into an unstoppable wrath and destroy the clans! By doing this she must decide to join the Dark Forest or save the clans!