Curse fiends are the descendants of the Seventh Wave of human colonization of Xanth. They did not mix with the other humans of Xanth. Their talents were always weak until they found a way to modify their talents. After finding no where safe to live, the created Gateway Castle under Lake Ogre. In the war between Hydrogen and the curse fiends against Loudspeaker, they created the Forbidden Regions: the Region of Air; the Region of Earth; the Region of Fire; the Region of Water, also called the Water Wing; and the Void. They prefer being known as the curse friends.