Harry Potter and the Chamber of Secrets seven books had been published, Graeme Davis regarded "Harry Potter and the Chamber of Secrets" as the weakest of the series, and agreed that the plot structure is much the same as in "Harry Potter and the Philosopher's Stone". He described Fawkes's appearance to arm Harry and then to heal him as a "deus ex machina": he said that the book does not explain how Fawkes knew where to find Harry; and Fawkes's timing had to be very precise, as arriving earlier would probably have prevented the battle with the basilisk, while arriving later would have been fatal to Harry
Harry Potter and the Order of the Phoenix Fire" was published on 8 July 2000 simultaneously by Bloomsbury and Scholastic. "Harry Potter and the Order of the Phoenix" is the longest book from the series, yet the second shortest film at 2 hours and 18 minutes. After the publishing of "Order of the Phoenix", the sixth book of the series, "Harry Potter and the Half-Blood Prince", was published on 16 July 2005, and sold 9 million copies in the first 24 hours of its worldwide release. The seventh and final novel, "Harry Potter and the Deathly Hallows", was published 21 July 2007. The book sold 11 million copies