Snape is not a muggle. He is a half-blood, hence the name the 'Half-Blood Prince.' His mother's maiden name was Prince, and his father was a muggle. Snape reveals who he is during the Battle of the Astronomy Tower, shortly after Dumbledore was killed. I don't remember the exact chapter.
I suppose you refer to the movie, where Snape doesn't want to carry out a certain task that Dumbledore asked him to do - and that Snape had already agreed to do. The task - as is clarified in book 7 - was for Snape to kill Dumbledore.
Books 1-5 was professor Snape, book 6-7 was Horace Slughorn.
Some of them are: Peeves the poltergeist (all books); Marietta, the friend of Cho (book 5); the muggle prime minister (book 6); Ludo Bagman (book 4).
there is no book 6. :(
no
Book 6 has already come out.
It is out.
there is no book 6
Severus Snape.
It is out. Book 6 is out too.
Yes, Albus Dumbledore was killed by Severus Snape in Harry Potter and the Half-Blood Prince. It was later revealed that Dumbledore had asked Snape to kill him.Severus Snape was killed by Lord Voldemort in Harry Potter and the Deathly Hallows. Voldemort murdered him thinking that, as the person who killed Dumbledore, he was the master of the Elder wand. He failed to realise that Draco Malfoy had disarmed Dumbledore, making him the master, and that Harry Potter had later disarmed Draco, making him the current master.
There is no sixth book. The Last Olympian was the final book.