What he did do was to become an almost fanatical devotee of subterranean magical lore, for which Miskatonic’s library was and is famous. Always a dweller on the surface of phantasy and strangeness, he now delved deep into the actual runes and riddles left by a fabulous past for the guidance or puzzlement of posterity. He read things like the frightful Book of Eibon, the Unaussprechlichen Kulten of von Junzt, and the forbidden Necronomicon of the mad Arab Abdul Alhazred, though he did not tell his parents he had seen them.