Stephen King's continuation of The Shining's Danny Torrance's life is addicting and, though scary and disturbing at times, has some real moments of inspiration and beauty. I found myself unable to put it down and read it fairly quickly, even though it is a long book.
It might not be as horrifying as The Shining, but the story is actually more involved and says a lot more about life--while also going into the realms of fantasy and horror as well.