Lestrange saw this as an opportunity to test Snape's loyalty and while making this vow to always watch over Draco, Lestrange forced Snape to agree to killing Dumbledore himself in case the youngster was unable to do so. There is another reason why Snape agreed to make this vow, and that is Dumbledore himself.

Why did Snape side with Dumbledore?

He joined Dumbledore to ensure Lily's protection, and after her death, her son Harry's. Albus Dumbledore's relationship with Severus Snape showcased an unusually strong trust and loyalty. While many characters questioned his intentions, Dumbledore consistently trusted Snape and defended him.

Why did Snape agree to kill Dumbledore?

Snape killed Dumbledore in an effort to protect Draco Malfo and spare him from the emotional trauma of murder. Snape used the Killing Curse (Avada Kedavra) to kill Dumbledore and end his suffering.

What deal did Snape make with Dumbledore?

When Draco could not bring it in his heart to kill Dumbledore despite having the opportunity with the latter cornered and wandless, Snape fulfilled the vow with Narcissa to kill Dumbledore himself, simultaneously fulfilling his promise to Dumbledore of a mercy kill, sparing Draco of having to do so under duress.

Why was Dumbledore arguing with Snape?

Snape never stopped loving Lily and wanted to keep her memory alive by making sure Harry was safe. This nearly led to a major fight between Dumbledore and Snape, as Dumbledore intended to kill Harry in order to destroy the last Horcrux.

Why Snape Agreed to an Unbreakable Vow (and to Kill Dumbledore) - Harry Potter Explained

Why did Snape join Voldemort after killing Dumbledore?

His negative experiences with his muggle father and neglectful witch mother contributed to his decision to join the Death Eaters. Snape's strained relationship with Lily, who chose James and allowed him and his clique to bully Snape, further pushed him towards the Death Eaters.

Did Dumbledore really trust Snape?

How much did Albus Dumbledore ever really trust Severus Snape? More than anyone else in the world, although that's really not saying much, considering how little Dumbledore trusted the next most-trusted person in line (probably his brother, Aberforth.)

Who was Snape actually loyal to?

However, near the climax of the book, Snape leaves Harry his dying thoughts (to be viewed in the Pensieve) and ultimately reveals to Harry that he had been loyal to Albus Dumbledore throughout the series.

Why did Dumbledore not save Lily?

He hid them using the only thing that would work against Voldemort. He used Fidelius charm and after that even secret keeper was to be protected using that as Sirius said in PoA. The plan failed because wormtail who was their secret keeper betrayed them.

Why did Snape betray Voldemort?

Snape seems to shift his loyalty between Dumbledore and Voldemort throughout the Harry Potter movies. Only the last film reveals that Snape had always been on the good side. He swore to protect Harry and did Dumbledore's bidding in his war against Voldemort, including infiltrating the Death Eaters.

Who did Malfoy almost kill?

He attempted to kill Dumbledore, but Dumbledore tried to convince Draco not to perform the task. Draco said that he had no choice. Otherwise, Lord Voldemort would murder him and his family. Dumbledore told Draco that he shouldn't do this, and that Draco was not a killer.

Why did Voldemort regret killing Snape?

Voldemort told Snape he had been a faithful servant, but that he had to regrettably kill him, as he mistakenly believed he was the master of the Elder Wand, as Snape had killed Albus Dumbledore, its former owner the year prior, during the Battle of the Astronomy Tower.

Did Dumbledore know Severus would kill him?

The wise wizard was aware of Draco's mission, and was worried about him going over to the dark side if he succeeded. Snape took the fall instead at Dumbledore's insistence. But, that's not all. Dumbledore was also aware that he wouldn't be alive for long because he had been cursed by the Horcrux ring.

Did McGonagall know Snape was good?

To defend her students, McGonagall casts a series of spells Snape's way, but he manages to evade all of them before flying away. But what McGonagall doesn't know is that Snape is actually a double agent working for Dumbledore, so he has no intention of harming her.

Who was Dumbledore's most trusted friend?

Despite the opinions of most others, Albus Dumbledore trusted Snape for reasons that were kept between them both until their deaths. Upon his death, it was revealed that his deep, strong love for Lily Evans caused him to redeem himself, joining Dumbledore's cause at the prospect of her protection from Lord Voldemort.

Did Dumbledore know that Snape was a Death Eater?

The final book, Deathly Hallows, explains this. Snape HAD BEEN a Death Eater. He later renounced his connections with that group, but no one besides Dumbledore knew for sure whether he had truly switched sides, or was just faking it. Dumbledore, alone, knew the truth.

Why did Lily not love Snape?

The Attraction Was Always One Sided

The fact Snape and Lily were only friends, and she only saw it as such, reveals a lot about his refusal to respect her boundaries. It seems his love was an ongoing obsession with her that lasted long after her death.

Why was Snape so obsessed with Lily?

Lily brought light and warmth into Snape's life from the moment they met. He was an isolated, lonely child whose magic would have only made him more of an outsider in his hometown of Cokeworth.

Why did Snape stay loyal to Dumbledore after Lily died?

But when Lily's life is directly threatened, he has to make a choice, and he chooses to stand between Voldemort and Lily. To do that, he aligns himself with Voldemort's chief opposition, Dumbledore, and becomes his spy. Even after her death, he remains at Dumbledore's side at Hogwarts and vows to protect her son.

Did Lily ever forgive Snape?

She missed Snape, but she knew she could never forgive him. Snape never stopped trying to make amends. But Lily remained steadfast. She could not, would not, forgive him.

Why did Lily stop talking to Snape?

One day, Lily tried to help Snape while he was being bullied by James Potter. In response, he called her a 'Mudblood' and they stopped being friends.

Did Lily know Snape loved her?

Snape wasn't unrequitted, but he merely loved Lily in a puppy, childish way just the same way she loved him. He didn't mature his feelings until very late, as an adult, when she was already out of grasp. Remember what Rowling said when she was asked if Lily ever reciprocated Snape's feelings.

Did Snape know Harry was under the invisibility cloak?

Dumbledore was doing James a favour by helping him pass down the Invisibility Cloak to his son Harry. Snape definitely knew because in book 4 when Harry sees crouch in Snapes office, he's in his invisibility cloak. As soon as snape sees the golden egg and the map he says 'potters here' to mad eye. Potters here.

Did McGonagall know about Snape and Dumbledore?

McGonagall later learned that Snape was secretly Harry's protector and had killed Dumbledore at Dumbledore's request. McGonagall then made a controversial decision to add Snape's portrait in the Headmaster's Office as a testament to his bravery.

Did Dumbledore know Sirius was innocent?

Dumbledore's lack of belief that Sirius is innocent is also suspect. Sirius was a member of the Order of the Phoenix which fought against Death Eaters, but Sirius also was as close to James as a brother, the Potters even took him in when he ran away from home.