The Prince of the Knooks is an immortal who rules the Knooks of Burzee, under the command of the King of the Knooks and of Ak the Master Woodsman. He decided a dispute between Will Knook, the keeper of the deer of Burzee, and Santa Claus, who had taken a pair of deer on a nighttime journey. At the encouragement of the Great Ak, and against the objections of Will, the Prince decreed that certain deer should be set aside as reindeer and were permitted to accompany Claus once each year, on Christmas Eve, as long as they returned to the forest by daybreak. (The Life and Adventures of Santa Claus)