Complex sentence: A large, black four-poster bed, possessed by a demon, is passed from owner to owner, often completely ingesting them in the process (victims are pulled into what is apparently a large chamber of digestive fluids beneath the sheets).
Split into simpler sentences: A large, black four-poster bed, possessed by a demon, is passed from owner to owner. Those who come into contact with the bed are frequently consumed by it (victims are pulled into what is apparently a large chamber of digestive fluids beneath the sheets).