Harry Potter and the Chamber of Secrets that time) the seventh highest-grossing film ever and received generally favourable reviews. Video games loosely based on "Harry Potter and the Chamber of Secrets" were also released for several platforms, and most obtained favourable reviews. On Harry Potter's twelfth birthday, the Dursley family—Harry's uncle Vernon, aunt Petunia, and cousin Dudley—hold a dinner party for a potential client of Vernon's drill-manufacturing company. Harry is not invited, but is content to spend the evening quietly in his bedroom, although he is confused why his school friends have not sent cards or presents. However, when he goes to his room, a house-elf named
The Magical Worlds of Harry Potter it was "cool that their hero, Harry, was encountering some of the creatures of mythology." Colbert felt that knowing the origins of Rowling's character and creatures increased "the books' magic tenfold" and made the "Harry Potter" universe seem more lifelike. Feeling that he wanted to share this with others, Colbert spent a year researching the references in the novels and collected his discoveries for a guidebook to the magical world of Harry Potter. Colbert wrote "The Magical Worlds of Harry Potter" while teaching a seminar on self-publishing to graduate students at the University of North Carolina. He had it self-published