Zelia Bishop & H.P. Lovecraft 
The Mound 

‘The Mound’ is a horror/science fiction novella by American author H. P. Lovecraft, written by him as a ghostwriter from December 1929 to January 1930 after he was hired by Zealia Bishop to create a story about an Indian mound which is haunted by a headless ghost. Lovecraft expanded the story into a tale about a mound that conceals a gateway to a subterranean civilization, the realm of K’n-yan.