Because voldemort thinks that snape is the master of the elder wand but he isn't.
Snape was an accomplished Occlumens.
They didn't; it was Dumbledore's plan. Snape agreed to go along.As for the reasons:Dumbledore was going to die soon, anyway. Snape had estimated that the curse would kill Dumbledore in about a year.It was important for Voldemort to trust Snape.They didn't; it was Dumbledore's plan. Snape agreed to go along. As for the reasons:Dumbledore was going to die soon, anyway. Snape had estimated that the curse would kill Dumbledore in about a year.It was important for Voldemort to trust Snape.They didn't; it was Dumbledore's plan. Snape agreed to go along. As for the reasons:Dumbledore was going to die soon, anyway. Snape had estimated that the curse would kill Dumbledore in about a year.It was important for Voldemort to trust Snape.They didn't; it was Dumbledore's plan. Snape agreed to go along. As for the reasons:Dumbledore was going to die soon, anyway. Snape had estimated that the curse would kill Dumbledore in about a year.It was important for Voldemort to trust Snape.
Severus Snape joined the Death Eaters after he left Hogwarts. He was the one who overheard the prophecy and told Voldemort what he had heard. When Snape discovered who it was that Voldemort planned to kill he headed straight to Dumbledore to tell him and ask for her protection because he loved Lily (Evans) Potter.Dumbledore said he would protect them but Snape had to do something for him and Snape agreed.The plan was that Snape joined the Order of the Phoenix and remained a member of the Death Eaters. Voldemort thought he was in the Order to spy on them and give information to the Death Eaters.In actual fact, Snape was a double, double agent. He worked for the Order telling them everything the Death Eaters knew and planned and told the Death Eaters only what Dumbledore allowed him to say.Overall; he was an Order member.
He didn't want to because that would be more complicated, but he had to. Severus Snape joined the Death Eaters straight out of school. After Lily Evans' life was put in danger he convinced Voldemort he was joining the Order of the Phoenix as a spy for them. In reality, he was spying on the Death Eaters for the Order and only passing on select information to Voldemort. As time went on this information had to get better because Snape became more trusted. Dumbledore let Snape tell Voldemort when Harry was going to be moved to ensure Voldemort still trusted Snape.
Nobody actually betrayed them, it was a plan of Dumbledore's and Snape that Snape would tell Voldemort the time and date the Order would depart with Harry. The only "betrayal" that occured was that Mundungus Fletcher disapparated when he saw Voldemort flying after him.
Voldemort realized the Elder Wand wasn't working right for him. Dumbledore had been the wand's previous master, so he presumed Snape was the new master as it was he who had killed Dumbledore. This assumption was incorrect, but nevertheless Voldemort thought he could correct the situation by killing Snape. It says a lot about Voldemort that he would murder someone whom he believed to be a faithful follower just to increase his own power.
it is because voldomort chose harry. there was another boy but snape left to go tell voldomort before the profecy was finished so voldomort only knew about harry. i wont tell who the other boy is and im sory but i am not going to ruin it. more info is in the seventh book.
Snape turned good way before that. He turned to the good side when he found out that the prophecy he overheard and told Voldemort about would mean that the one person he had ever loved ( Lily Potter Nee Evans ) was in danger. He then told Dumbledore and in exchange for their protection took a teaching place a Hogwarts. He told Voldemort that he was still a death eater and that the position would be useful to spy upon Dumbledore. Snape only told Voldemort what Dumbledore told him to tell which was rather a lot.
To test if he's become dark.
Voldemort did not enter the Potter's home specifically to kill Lily and James. He was there to kill Harry due to the piece of the prophecy Snape had conveyed to him. However, Voldemort really did not care who he left dead in his wake. James tried to give Lily and Harry a chance of escape, so he was killed without a second thought. Lily stood between Voldemort and the infant Harry. Since Snape requested mercy on Lily's behalf, Voldemort gave her the choice of moving out of his way. When she refused him, he killed her anyway.
No, only Dumbledore knew this until Harry watched his memories. Many questioned why Dumbledore trusted Snape because they didn't know. Severus Snape was a member of Voldemort Death Eaters during the First Wizarding War, however after accidently making Lily Potter (the woman Snape is in love with and Harry Potter's mother) Voldemort's target, he switches sides. He works as a Double Agent for the Order of the Phoenix after asking Albus Dumbledore to protect the Potters. All the information he gives the Death Eaters are things Dumbledore has told him to tell. He of course tells the Order everything the Death Eaters are doing.
In the end we discover that Severus Snape is a good guy who is working along side the Order of the Phoneix. For the most part of the Harry Potter series, Snape is seen as a horrible man who hates Harry only because of an old grudge with Harry's father and two of his father's friends and because Severus loved only one woman in his life, Lily Evans, who was Harry's mother. Everytime he saw Harry it was a reminder that he lost out because of a silly mistake and now the woman he loved was dead. Snape and Lily met when they were children and were best friends until their years at Hogwarts, when they were separated into different Houses. Snape was already making Death Eater friends by the time he was in third year. This angered Lily because they were cruel to others, including her friends. However Snape was also bullied and one day Lily stood up for him when James and Sirius were embarrassing him. Snape then shouted that he didn't need help from a mud-blood and Lily never spoke to him again. When Harry came to Hogwarts, Snape immediately did not like him due to the memories he had of James tormenting him because Harry looks just like his father. However Snape ad promised Dumbledore he would help protect the child of someone he loved - he just didn't have to show he was doing it or like what he was doing. Harry's thoughts on Snape become very confused during his years at Hogwarts. Snape was always unmerciful and cruel towards Harry, but then again Snape had saved Harry once from falling from his broom at a Quidditch match. It is discovered that Snape was playing a double agent role between the sides of Dumbledore and Lord Voldemort, although until the seventh book, no one truly knows what side he is on. Snape passed information from the Order onto the Death Eaters but only information which Dumbledore told him to pass on. Snape was truly on the side of the Order but pretended that he was a Death Eater to find out information which he then passed onto the Order - of course to be acquainted with Dumbledore and not arouse suspicion he had to pretend to the Death Eaters that he was spying on the Order for them. He was told by Dumbledore to kill him so that the Elder Wand wouldn't belong to anybody. However, Voldemort thinks Snape owns it and so kills him to become the true master. Snape gives Harry his memories explaining the missing parts of the story and then tells Harry to look into his eyes so that the last thing he saw before he died was Lily Evans eyes. Later in life Harry named one of his children Albus Severus after the two bravest people he ever knew.