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 and the Prisoner of Azkaban will meet again. "Harry Potter and the Prisoner of Azkaban" is the third book in the "Harry Potter" series. The first, "Harry Potter and the Philosopher's Stone" ("Harry Potter and the Sorcerer's Stone" in the US), was published by Bloomsbury on 26 June 1997 and the second, "Harry Potter and the Chamber of Secrets", was published on 2 July 1998. Rowling started to write the "Prisoner of Azkaban" the day after she finished "The Chamber of Secrets". Rowling's favourite aspect of this book was introducing the character Remus Lupin, Rowling additionally said in 2004 that "Prisoner of Azkaban" was "the