Résumé: Den is a young man named David Ellis Norman. Following directions left for him on a note and a diagram from his missing uncle Dan, David builds another electronic apparatus. The apparatus opens a gateway to a fantasy world named "Neverwhere", where he was transformed into a hairless, nude, muscular, above-normal strength with martial arts fighting skills; prodigiously sexually endowed adventurer. Confused by his strange trip, he can only remember the acronym of his real name (DEN), and begins calling himself "Den".