Cassima is the name of the servant girl you meet in the kitchen of Mordack's Castle. She's not just any ordinary servant girl though, as she's actually the princess of a kingdom known as the Green Isles. Cassima aids King Graham to escape a prison in Mordack's castle, after Graham gains her trust by returning her lost locket.
The theme is one of the best themes in Sierra adventure game history as it actually goes on to form the basis of the next game's soundtrack including the theme song, Girl in the Tower.
Thanks to Sierra On-Line and Quest Studios for providing these memorable tracks.