Khác biệt giữa bản sửa đổi của “Muggles' Guide to Harry Potter/Magic/Polyjuice Potion”

One wonders what happened when Crabbe or Goyle, standing guard duty, ran out of time? They did not seem to have any additional potion with them, and it is certain that a 6th-year Crabbe or Goyle would not have fit into the robes of the students they chose to disguise themselves as, which were typically first- to third-year girls. Possibly they had additional stock of prepared potion with them, but we never see them drinking any of it. However, throughout the seventh book, the effects of the potion seem to wear off at much more convenient times than we would expect; rather than a fixed hour in duration, for instance, Harry's disguise as "Barny" seems to last for the duration of the wedding, and Harry, Ron, and Hermione's disguises as they invade the Ministry not only seem to remain in place for the entire time that they are in the Ministry, but seem to wear off very conveniently just as they leave [[Muggles' Guide to Harry Potter/Places/Grimmauld Place|Grimmauld Place]] for the forest where the [[Muggles' Guide to Harry Potter/Major Events/Quidditch World Cup|Quidditch World Cup]] had been played two years before. This convenient duration of the potion effects seems to be one of a number of places where the author is altering the magic she has created in order to make a better story.