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

Snape is, apparently, questioning Dumbledore about Lupin's appointment as the Dark Arts Professor. This ironically mirrors the same suspicions others will express about Snape in the future. Despite the obvious things that Snape does at Dumbledore’s behest, such as making the [[Muggles' Guide to Harry Potter/Magic/Wolfsbane Potion|Wolfsbane Potion]] for Lupin and giving Harry [[Muggles' Guide to Harry Potter/Books/Order of the Phoenix/Chapter 24|Occlumency lessons]] in [[Muggles' Guide to Harry Potter/Books/Order of the Phoenix|''Harry Potter and the Order of the Phoenix'']], Snape’s [[Muggles' Guide to Harry Potter/Characters/Severus Snape|Death Eater history]] cannot be easily forgotten, or forgiven. Snape, however, has either fully accepted the Ministry story about SiriusBlack, or is using it to suit his own ends, and will express the belief that Lupin, who was fast friends with SiriusBlack, the late [[Muggles' Guide to Harry Potter/Characters/James Potter|James Potter]], and the supposedly late [[Muggles' Guide to Harry Potter/Characters/Peter Pettigrew|Peter Pettigrew]], is helping his old friend enter the castle undetected. However, Dumbledore trusts both Snape and Lupin and does not publicly entertain doubts regarding either man's loyalty.

Snape has known that Lupin is a Werewolf since their school days together at Hogwarts. As students, Pettigrew and SiriusBlack tricked Snape into going to the tunnel leading to the [[Muggles' Guide to Harry Potter/Places/Shrieking Shack|Shrieking Shack]] while Lupin was transformed. This would have proven fatal to Snape if not for James Potter's intervention. While Snape likely has agreed to conceal Lupin's condition, his Werewolf lecture while substituting for Lupin's class 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, will tell their parents, who likely will pressure Dumbledore to dismiss Lupin. Luckily for Lupin, only Hermione discovers that he is a Werewolf, a discovery she reveals to no one, and 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 SiriusBlack is an unregistered Animagus. Lupin may have guessed that SiriusBlack is evading the Dementors in his dog form. It is never explained why Lupin fails to mention this rather important possibility to Dumbledore, particularly after SiriusBlack gained entrance into the castle. It is easier to guess why Snape, if he knew, would avoid telling Dumbledore this. Snape, we see in this chapter, retains a powerful grudge against Lupin for events dating back to their school days together, and in a later chapter has convinced himself that Lupin is somehow helping Sirius enter the castle. Knowing that SiriusBlack can transform into a dog and evade the guards would weaken this theory substantially, indicating that Snape has either forgotten it or never knew it. Given his later disbelief as to Scabbers' true identity, however, we believe Snape is simply unaware that SiriusBlack is an Animagus. Considering that an Animagus must be legally registered with the Ministry of Magic, this is something that SiriusBlack, Peter Pettigrew, and also James Potter kept strictly secret about themselves.