This novel was better than what I had expected. One thing I liked about this story was the rawness with which it was handled. No flashy gadgets, no mind-boggling futuristic technology to keep track of the Walkers. Nothing. Just some soldiers following the Walkers in a military vehicle with chronometer in their one hand and a rifle in the other one. Really, what else do you need?
One question that kept nagging at my mind at all the times while reading this was that WHAT actually happened to the world that it started going ape-shit in 'The Long Walk'. I was concerned for a while thinking that King was not going to answer that even at the end. But as it is Stephen King, he told everything that needed to be said in just one sentence in the 14th chapter. And never ever mentioned or even elaborated it again intentionally.
It's not much of a spoiler as far as the story goes, but for me, it answered something that I wanted to know right from the start. The lights filled the sky with a bubblelike pastel glow that was frightening and apocalyptic, reminding Garraty of pictures he had seen in the history books of the German air-blitz of the American East Coast during the last days of World War II.