The Final Summit by Andy Andrews
When I first received Andy Andrew's newest book, The Final Summit, [released on 04/12/2011] I was a little worried since I had not read the first book, The Traveler's Gift. Luckily, that wasn't a problem.
David is told, by Gabriel, the archangel, that he must attend a summit in which he and a group of other travelers must answer a question correctly to save humanity. They are given 5 trys. As I read, I found myself trying to guess what the correct answer would be. I was wrong.