After the slow death of the Twilight franchise, Hollywood is pondering over what will be the next sensation that sends young girls into an obsessive, heart-stopping, tear-inducing, let-the-whole-of-youtube-know state. Yet, let’s not worry too much for the multi-billion industry, as producers have already set their sights on The Next Big Thing. Except, the Next Big Thing isn’t just a book – it’s a whole genre.