Complex sentence: Many characters from "Redwall" and "Mattimeo" are present in the book, however, the baby mole Bungo is the only character to appear and not be featured in any other Redwall novel.
Split into simpler sentences: Many characters from "Redwall" and "Mattimeo" are shown in the book. However, baby Bungo the mole appears in the book but is not featured in any other Redwall novel.