Needful Things was a 1991 horror novel by American author Stephen King.
It is the first novel King wrote after his rehabilitation from drugs and alcohol. According to the cover, it is "The Last Castle Rock Story". However, the town later serves as the setting for the short story "It Grows on You", published in King's 1993 collection Nightmares & Dreamscapes which, according to King, serves as an epilogue to Needful Things. It was made into a film of the same name in 1993 which was directed by Fraser C. Heston.