The Return of the Sorcerer ties into the book of magic appearing in stories by which horror writer?
Necronomicon The Necronomicon is a fictional grimoire (textbook of magic) appearing in the stories by horror writer H. P. Lovecraft and his followers. It was first mentioned in Lovecraft's 1924 short story "The Hound", written in 1922, though its purported author, the "Mad Arab" Abdul Alhazred, had been quoted a year earlier in Lovecraft's "The Nameless City". Among other things, the work contains an account of the Old Ones, their history, and the means for summoning them.
The Adventure of the Priory School "The Adventure of the Priory School", one of the 56 Sherlock Holmes short stories written by British author Sir Arthur Conan Doyle, is one of 13 stories in the cycle collected as "The Return of Sherlock Holmes". Doyle ranked "The Adventure of the Priory School" tenth in his list of his twelve favorite Holmes stories.