The snaggle-toothed maw of the Fathomless Cave yawns in front of you; an ugly gash in the mountainside, sharp spires of rock jutting out at odd angles like fangs. Darkness immediately shields the interior from your perception -- magical, of course. It has a wrongness about it that makes your skin prickle and your stomach sink.
Seated just outside of the threshold to its home is the werebeast. It appears to have anticipated your arrival, and greets you warmly.
"Welcome. Where may I guide you today?"
It gestures with its massive paws. A glow appears in the darkness behind it. From that, words grow, and you are presented with a list. You know that the werebeast will guide you safely to your chosen destination through the cave...