Khác biệt giữa bản sửa đổi của “Harry Potter dành cho Muggle/Truyện/Tên Tù Nhân Ngục Azkaban/Chương 9”

Snape has known that Lupin is a Werewolf since their school days together at Hogwarts. As students, Pettigrew and Black tricked Snape into going to the tunnel leading to the [[Muggles' Guide to Harry Potter/Places/Shrieking Shack|Shrieking Shack]], where Lupin was confined during his transformations. If not for James Potter's intervention, Snape would likely have been killed. WhileEven though James was not involved the prank, Snape still blamed him. Dumbledore made Snape swear never to reveal Lupin's condition to the other students. Many years later, Snape probably agreed to conceal Lupin's condition when Lupin was hired,. hisHis Werewolf lecture while substituting for Lupin is an attempt to circumvent that restriction. Snape hopes a student will recognize those characteristics in Lupin and reveal them to classmates, and they, in turn, would tell their parents, who likely would pressure Dumbledore to dismiss Lupin. At the end of this book, something similar will happen; Snape will deliberately let Lupin's nature slip to Slytherin house, and as a result Lupin will leave the school. For now, Lupin is lucky that only Hermione discovers his secret, a fact she reveals only to Harry and Ron when Pettigrew is unmasked in the Shrieking Shack scene later in the book.

One unaddressed fact is that Lupin knows that Black is an unregistered Animagus. Lupin may have guessed that Black is evading the Dementors in his dog form. It is never explained why Lupin withholds this rather important possibility from Dumbledore, particularly after Black gained entrance into the castle. Though Lupin supposedly believes that Black betrayed the Potters, he may actually be harboring some lingering doubts as to Black's actual guilt, preventing him from revealing Black's ability to change shape. It is certainly true that Lupin is quick to accept Black's disavowal of responsibility in the Shrieking Shack. It is easier to guess why Snape, if he knew, might avoid informing Dumbledore. Snape, as we start to see in this chapter, retains a powerful grudge against Lupin for events dating back to their school days together, and may have convinced himself that Lupin is somehow helping Sirius enter the castle. Knowing that Black can transform into a dog and evade the guards would weaken this theory substantially. byBy removing the requirement for inside help in entering the school, so we can suppose that if Snape ever knew of the ability, he is subconsciously suppressing the memory. Given his later disbelief as to Scabbers' true identity, however, Snape seems simply unaware that Black is an Animagus. Also, in the final book, [[Muggles' Guide to Harry Potter/Books/Deathly Hallows/Chapter 33|''Harry Potter and the Deathly Hallows'']], it is revealed that Snape has always been loyal to Dumbledore and dedicated to protecting Harry. It would seem likely that immediately after Black's escape, and knowing his supposed intent to kill Harry, that Snape, if he knew, would have mentioned Black's ability to Dumbledore and/or the Ministry, particularly during discussions regarding Harry's protection at Hogwarts from Black. Of course, given that an Animagus must be registered with the Ministry of Magic or face serious legal consequences, it is safe to suppose that Black, Peter Pettigrew, and James Potter would have kept this ability strictly secret, and Lupin would presumably keep their secret, out of loyalty to the other three Marauders, and possibly also to avoid being considered an accessory to their crime.