Complex sentence: At the end of "The Penultimate Peril", a large fire consumes the Hotel Denouement and destroyed it while the two villains were inside, though it is unknown if they lived or died, as they were not seen in "The End".
Split into simpler sentences: At the end of "The Penultimate Peril", a large fire consumes the Hotel Denouement and destroyed it while the two villains were inside. It is unknown if they lived or died, as they were not seen in "The End".