It's been a very long time since I was so enthralled by a story, so much that I couldn't put it down. The last time was probably with The Stand, so many years ago, which in my opinion was Stephen King's masterpiece and one of the best books ever written. 
 The beginning was a bit slow, in the usual SK style, but once the story got going, it was fantastic. 
 Writing under the point of view of someone who's sanity is slowly deteriorating is downright horrific, but at the same time, brilliant, esp. since King makes the reader be somewhat sympathetic to the murderous thoughts and tendencies, which in itself makes it a horror story. 
 On the other hand, we also have the point of view of an innocent child with a God-sent gift, the balance to the father's evil, which is also a Stephen King trademark. 
 Now on to Doctor Sleep.