- Harry Potter play script hits No 1 on book charts a day after announcement of 'eighth story' - Waterstones predicts unprecedented sales for Harry Potter and the Cursed Child, which has also topped the Amazon charts ahead of its publication this summer. http://www.theguardian.com/books/2016/feb/11/harry-potter-play-script-hits-no-1-on-book-charts-a-day-after-announcement-of-eighth-story 80 comments books