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 (film series) second unit, and the visual effects unit. You have to know what is being captured – colours, contrast, et cetera – with mathematical precision." He noted that with Stuart Craig's "amazing sets and the story", the filmmakers could not "stray too far from the look of the previous "Harry Potter" films." Along with continuous changes in cinematographers, there have been five film editors to work in post-production on the series: Richard Francis-Bruce edited the first instalment, Peter Honess the second, Steven Weisberg the third, Mick Audsley the fourth, and Mark Day films five through eight. The "Harry Potter" series has