Book of Potions (or Wonderbook: Book of Potions) is an augmented reality video game developed by London Studio in conjunction with J. K. Rowling and Warner Bros. Interactive Entertainment as a companion to the Harry Potter series and as a follow-up to the Wonderbook's debut title, Book of Spells. It was released in Europe on 15 November 2013 and North America on 12 November 2013, alongside Diggs Nightcrawler and Walking with Dinosaurs.