Harry Potter and the Philosopher's Stone (video game) standing on a trap door which is guarding the Philosopher's Stone, a magical object which grants the user immortality. When Harry is almost killed during a game of Quidditch, by what appeared to be Professor Snape uttering a curse at him, Harry concludes that he is after the Philosopher's Stone. Harry, Ron and Hermione set out to stop Snape from retrieving the Philosopher's Stone by putting the three-headed dog to sleep with music and going through the trapdoor. The three face a series of obstacles that protect the stone which includes surviving a deadly plant, catching a flying key, playing
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