In many stories, Domdaniel is a cavern at the bottom of the ocean where sorcerers and spirits meet. In T. H. White's "The Sword in the Stone," Merlin says his duel with Madam Mim will test if a magic degree from Domdaniel (Mim's alma mater) is superior to tutoring from Merlin's mentor Blaise. #FairyTaleTuesday