The Horla

"The Horla" (French: Le Horla) is an 1887 short horror story written in the style of a journal by French writer Guy de Maupassant, after an initial, much shorter version published in the newspaper Gil Blas, October 26, 1886.
American horror writer H. P. Lovecraft, in his survey "Supernatural Horror in Literature" (1927), provides an interpretation of the story: