Henry James 
Turn of the Screw and The Aspern Papers [EPUB ebook] 

The Turn of the Screw tells the story of a young governess sent to a country house to take charge of two orphans. Unsettled by a sense of intense evil in the house she soon becomes obsessed with the idea that something malevolent is stalking the children in her care. Meanwhile The Aspern Papers explores obsession of a more worldly kind, with its tale of a literary historian determined to get his hands on some letters written by a great poet. Such is his drive, he is quite prepared to use trickery and deception to achieve his aims…