Forest of Carnage I: NightClan's Games [Warriors Fan fiction]

For more moons than any cat could count, CloudClan, CaveClan, and MothClan had lived contently next to the ocean side in the region they called 'Sky Brush' due to a large mountain brushing the very tip of the vast sky. Occasional wars would break out between them, but nothing serious. That all changed the day CloudClan fell.
A massive group of cats ruled by a she-cat named Carnage attacked the clans, only having to deal with CaveClan and MothClan. Carnage soon became ruler of the forest, unifying every cat under her. She named her group NightClan, and deployed a kind of 'game' to keep the population down and for her own sick amusement.