Complex sentence: He joined Olaf and left Captain Widdershins after burning down Anwhistle Aquatics he also joined Count Olaf because Captain Widdershins always said "Aye!" which annoyed him.
Split into simpler sentences: He joined Olaf and left Captain Widdershins after burning down Anwhistle Aquatics. He also joined Count Olaf because Captain Widdershins always said "Aye!" which annoyed him.