Complex sentence: Thereafter Bastian confesses to Coreander stealing his book and losing it, but Coreander denies ever owning such a book, and reveals he has also been to Fantasia, and that the book has likely moved into the hands of someone else.
Split into simpler sentences: Thereafter Bastian confesses to Coreander stealing his book and losing it, but Coreander denies ever owning such a book. Coreander reveals he has also been to Fantastica, and that the book has likely moved into the hands of someone else.