Anthony Horowitz discovered books as an unhappy kid in school and knew that he would one day grow up to be a writer. More than 50 books later, the author will now see one of his most popular characters -- an unlikely teenage spy named Alex Rider -- come to life in an original series airing on Amazon Prime. His hope though is that the TV series will drive viewers back to the 13-book young adult book series because he believes books are a "remarkable way to use your brain."  Learn more about your ad choices. Visit megaphone.fm/adchoices