Twilight sat hard, tipping Moondancer off her back, and when she opened her eyes again, they were brimming with tears. "We spent three hours arguing over the implications of Morari the Maneless' writings on magic's affect on non-magical materials. It turned out my book had a typo, saying that a magicless material would nutrify the magic's effect, instead of nullifying it. I always found that a bit strange until I saw your copy. Nopony else in the class would have even known who Morari the Maneless was."