Stephen King first announced the idea of a sequel in 2009 at a reading of Under the Dome in Toronto.
Here's the fantastic video of his visit and acceptance of the Mason Prize at the Center for the Arts Concert Hall on George Mason University's Fairfax, VA campus. It does contain adult language that may not be suitable for children (I don't want you to just push play and be surprised if you have little ones around). The actual reading from Dr. Sleep begins at the 29-minute mark. Many thanks to GMU-TV for sharing it with us.
What's your favorite Stephen King novel?