Henry James 
Turn of the Screw [PDF ebook] 
A Horror Novella from 1898

Originally appearing in serial format just before the turn of the twentieth century, The Turn of the Screw is considered a classic of Gothic fiction. Critically acclaimed for its ability to create a sense of confusion and an atmosphere of suspense in the reader, the story focuses on a governess caring for two children at a remote country estate who becomes convinced that the grounds are haunted. With so many works since drawing on the themes explored by Henry James in this novella, this is an absolute must-read for any fan of the paranormal.