Just finished reading the library book of this yesterday. Decent story, although it focuses more on Dan Torrence's struggle with his alcoholism in trying to live through his childhood horrors at the Lookout Hotel as well as how he more or less tried to destroy his adult life through drinking because of the "ghosts/revenants" who have haunted him his entire life. Dan also helps people who are on the verge of passing on in a hospice he works at, hence the name Doctor Sleep as he helps them gently pass on to their afterlife. The cult is loosely based on the older people who you see in campers and RVs on the highways and campgrounds of the US (but with a shadowy secret society angle with almost unlimited financial and political power), and the True Knot is an long-lived tribe of paranormal parasites who feed on children with the Shining (Shining is their food source), led by a devious, manipulating and merciless woman called Rose the Hat, a centuries old "glamoured" monster who wears a magician's top hat (hence the name). The cult is composed of those who has different kinds of the Shining before their Turning (powers like suggestion, sleeping, "invisibility", locators/trackers, etc) but was Turned by Rose into something not quite alive and not quite dead. Also, there is a surprise link between Dan and Abra, the girl he is trying to help. The entire story centres around Dan, Abra and Rose, with the girl's parents and great-grandmother (Momo plays an important part near the end), Dan and his friends from the AA and Rose and her cabal who is looking for the big white whale (a mega steamhead/huge shining food source) after a previous feeding has left the entire tribe dying (cycling) off one by one from disease with a final showdown between Dan and Rose (with Abra riding shotgun in Dan's head) near the end. And that is just some of the stuff happening (this is the basic premise of this story, but there is a whole lot more context, but you have to read the book to understand how everything fits together - I highly recommend it because movies tend to skip over important context and leaves out large chunks of story necessary to understand characterization and/or world building). Hoping the movie captured the best moments of the book?