Warriors Super Edition #4: Crookedstar's Promise - Book Review

This book is a biography of Crookedstar. He is born as Stormkit. His face is permanently disfigured in an accident as a child, and he is renamed "Crookedjaw". He and his brother are rivals, as they both want to be clan leader. Crookedjaw makes a promise to a ghost cat named Mapleshade, in exchange for training. While Mapleshade's training is effective, she is revealed to be a villain who attempts to kill his family as part of a twisted revenge plot.
I give this book a 9 out of 10.