Warriors Super Edition: Crookedstar's Promise

I've been rereading all of these books from my childhood. I have no memory of this spin off, but after reading it recently, Crookedstar's Promise, a super edition focusing on Riverclan, is one of the most potent of the Warrior Cats series. It follows Crookedkit through his life of becoming a paw, a warrior, and eventually the leader of his clan - an arc which seemed impossible because of an accident in his early childhood. The ostracization and ridicule he faces because of a physical disability is heartbreaking. Even some of the people closest to him can't look past his physical features to his heart, causing him to feel unloved - a universal human experience. Essentially, he 'makes a deal with the devil' because of his shame, unknowingly aligning with Mapleshade, a cat from the Dark Forest, this universe's hell. Some of the book is a bit fluffy, but a lot of it has emotion even for adults, especially the climax and Crookedstar facing the decisions he's made and the decisions he's yet to make. Crookedstar's relationship with his brother is also quite wholesome and may be impactful for those with siblings.