Dungeon Keeper (Shadowgate 64)

The dungeon keeper is a character in Shadowgate 64: Trials of the Four Towers who imprisons the main character, Del Cottenwood. His main source of hapiness, as mentioned by Wil Goddard, is his violin. For some unknown reason, he sells his violin to the shop keeper. Del eventually buys back the violin with Aristolin's treasure and uses it as a distraction in order to free Agaar from his cell. The dungeon keeper eventually learns his lesson when Agaar uses a spell that transports him into a cell which is then locked by Del.