Warrior Cats: Forbidden Light
This plot takes place in around the second arc of Warrior Cats, in which the dark forest is brewing a sickening plan. They currently plan to take over the living world of cats, and destroy all codes and order to inflict anarchy and fear. The plan was originally founded by "Finch", a disgusting and atrocious feline. Over time, the line of warriors began to back out, making the plan dissappear and become forgotten, and eventually, was scrapped. Years and years passed, until a line of cats from the living world died in a furious battle, and ended up in the dark forest. The cats uncovered this lost plan, and brought it to life, before the others in the dark forest turned against them all, and even her own friends turned and left her side. RabbitFoot, FlintStar, and HareClaw are the only three who can stop her.