Plagued by insane nightmare visions, Walter Gilman seeks help in Miskatonic University's infamous library of forbidden books, where, in the pages of Abdul Alhazred's dreaded Necronomicon, he finds terrible hints that seem to connect his own studies in advanced mathematics with the fantastic legends of elder magic. The Dreams in the Witch House, gathered together here with more than twenty other tales of terror, exemplifies H. P. Lovecraft's primacy among twentieth-century American horror writers.