Duke Dreer who lived in the castle of Dreer's Keep in the Shadow Kingdom of Skull Path. He kept an eye on his domain by using the skulls found along the Skullpath as a means of spying on anyone who entered the Great Gate.
Inside the castle, Dreer displayed the bones of three giant bats which he referred to as Bone Bats. With the use of his magic wand, Dreer was able to reanimate the bones and make them do his bidding. The castle was also equiped with various dungeons which the Duke liked to reserve for any unwanted visistors who entered the Great Gate of Skull Path.