The Turn of the Screw (Penguin Classics)

'The apparition had reached the landing half-way up and was therefore on the spot nearest the window, where, at the sight of me, it stopped short.'

A young governess is sent to a country house to take charge of two orphans, Miles and Flora. Unsettled by a dark foreboding of menace within the house, she soon comes to believe that something malevolent is stalking the children in her care. But is the threat to her young charges really a malign and ghostly presence, or something else entirely?