In Skingrad Castle (where the Lord is the Vampire), follow the lizard woman wearing a green tunic. Eventually she will stop and speak to a passerby in the castle. She will start talking about some wine she had drank from the nearest wine vender in town. The passerby replies "Yes he is a very good friend of mine. He let me drink his wine. It was a mighty fine wine!". These are lyrics to the song "Joy To The World" by Three Dog Night.