A child is left in the care of a disturbed babysitter in “surely one of the finest pure terror-suspense stories ever written” (The New York Times).   Bunny’s parents shouldn’t have brought her to New York City, but her father has an important speech to make, and her mother couldn’t bear to be away from their darling nine-year-old daughter. And when her mommy and daddy leave for the speech, Bunny will stay in the hotel with a babysitter, sound asleep and perfectly safe. What could possibly go wrong?   The sitter is Nell, a plain young woman from Indiana. She puts Bunny to bed and amuses herself in the other room, making prank calls and trying on Bunny’s mother’s jewelry. So far, all is well. But Nell’s dull expression conceals madness, and something is broken inside her mind . . .   From one of the greatest female crime writers of the mid-twentieth century, an Edgar Award winner and six-time finalist, Mischief is “a fine, chilly combination of horror and suspense” (The New Yorker).