Homeland the Prequel

This is all Fiona's fault she started the addiction and now on my plane to Manchester today I read a third of the book Carrie's Run written by Andrew Kaplan. It tells the story of Carrie before meeting Brody and what really happened in Beirut. It is a captivating story and answers some of the questions that have cropped up as I watched the earlier series. Can't wait to read the rest of the story ... Wonder what happens next? Oops I know it is a prequel ...