Quidditch Through the Ages to Find Them" have raised £17 million. In 2001, Rowling penned two companion books to the "Harry Potter series", "Quidditch Through the Ages" and "Fantastic Beasts and Where to Find Them", for British charity and offshoot of Live Aid, Comic Relief with all of her royalties going to the charity. As of July 2008, the books combined are estimated to have earned over $30 million for Comic Relief. The two books have since been made available in hardcover. Within the fictional world of "Harry Potter", "Quidditch Through the Ages" is written by Kennilworthy Whisp, a renowned Quidditch expert. In both
Harry Potter screenwriting. A number of other non-interactive media games and board games have been released such as "Cluedo Harry Potter Edition", "Scene It? Harry Potter" and "Lego Harry Potter" models, which are influenced by the themes of both the novels and films. There are thirteen "Harry Potter" video games, eight corresponding with the films and books and five spin-offs. The film/book-based games are produced by Electronic Arts, as was "", with the game version of the first entry in the series, "Philosopher's Stone", being released in November 2001. "Harry Potter and the Philosopher's Stone" went on to become one of the