A Black Shadow is about a black loner named Eclipse who was enjoying her life of solitude; until the Clan cats came that is. Thunder, River, Shadow, Wind, and Sky; so many cats, all willing to fight viscously to steal her home. Fueled by rage, Eclipse managed to create a rogue group of cats who had also been chased out by the Clans, and she made plans to chase out the code-following cats. After a horrific, blood-filled battle, Eclipse and her rogues are victorious. They killed the leader, deputy, and medicine cat of every Clan, and permanently banished the remaining cats.
(Feel free to make a better ending for this. I couldn't come up with one.)