After seeing a lot of Needful Things posts I finally read it
And holy mother of god did it get crazy at the end. The progression of “this is fine” to “this is very much not fine” surprised me even as someone who’s been a Stephen King reader for awhile. The entire book was a great use of a demonic entity.
At the beginning I figured “okay random demon who’s giving people what they want it’ll be fine” but no. Progressed into “random demon who’s not only giving people what they want but is ending an entire town” very quickly and I loved it. Perfectly good use of an entity that’ll do whatever it wants.