In
Bellatrix taking a knife and carving Hermione's arm is incredibly unnecessary for a magical being who could have done the exact same thing with her wand if she'd wanted to, which she didn't, because Hermione wasn't supposed to survive.
Bella is Sister-in-Law and Aunt to both Malfoy and didn't need to read the Prophet to know, but it IS public. Draco Malfoy informed His Aunt Bellatrix, that Hermione was muggle-born, a Mudblood as he would have put it.
Malfoy called her 'Mudblood', a very grave insult referring to a wizard or witch born to non-magic parents. Here are some of his most searing stabs at Muggle-born wizards... 1. 'I really don't think they should let the other sort in, do you?
In the book? None of them. Bellatrix has a knife, which she used to cut Hermione lose from the other prisoners, but she's not cutting Hermione with it.
Putting it simply, Draco was just being a brat when he called Hermione a mud-blood. He had no way of knowing if she was or wasn't, but all pure-bloods believe lesser witches/wizards are mud-blood.
Harry Potter and the Deathly Hallows
In this book, Rowling reveals that Bellatrix is the guardian of Helga Hufflepuff's cup (though she is unaware that it is a Horcrux), which Voldemort has entrusted the Lestranges to keep in their Gringotts vault.
Her real parents were Daneel and Dean Novak, Pureblooded wizards. Turns out Daneel was Tom Riddles younger sister, Daneel Riddle. Of course, the Riddles were related to Salzar Slytherin himself, and this made Hermione the living heir of Slytherin. The problem with being a female Slytherin heir, is that they're cursed.
In some cases (the Malfoy family) blood traitors are a bad as Mudbloods. As other people said, it is also due to the Malfoys' arrogance, the feeling of self-importance and wealth. The Weasly family is also very poor, which may also lead to a dislike with the rich, pureblood families.
Harry James Potter holds half-blood status in Rowling's imagined wizarding world because his mother is Muggle-born and his father is pure-blood. There are three main blood statuses; pure-blood, half-blood, and Muggle-born, which are all methods of determining a witch or wizard's magical lineage.
The author explicitly states that both women were fighting to kill, despite Molly refraining from casting the Unforgivable curse Avada Kedavra. The result of the duel actually comes about as a result of nothing more than spectacular accuracy on Weasley's part.
Draco had several reasons for lying to Bellatrix, including the fact that he was never a bad person. Moreover, he no longer found working for the Dark Lord appealing and hated how Voldemort treated his family. He did not intend to harm anyone and believed Harry was the only person capable of defeating Voldemort.
In the book, it's primarily because: Hermione didn't disapparate with Harry and Dobby from Malfoy manner. So it's possible she wasn't close by them. Ron apparated with her based on the description of the scene and not knowing Dobby's injury, he probably took her right back to Shell Cottage without thinking.
Another aspect of the charm not shown in the movie is whether Hermione reverses it. In the Harry Potter book series, it's clear that Hermione finds her parents and undoes the magic. Additionally, author J.K. Rowling stated in a webchat that, “Yes, she brought them home straight away.”
Catelyn DID swear an oath to Walder. But, then, it's pretty dramatic to go and have the woman (and her family) slaughtered. Family drama aside, DAMN. This means ARGUS FILCH KILLED HERMIONE'S MOM!
After some searching, Harry and Hermione find the ancient grave of one Ignotus Peverell, marked with the sign Grindelwald used, and the grave where Harry's father and mother are buried.
Despite being a valued Death Eater in the days before Voldemort fell following his attack on baby Harry, Lucius stumbled out of favor with the Dark Lord when he squandered Riddle's diary (secretly a horcrux) in Chamber of Secrets and failed to obtain the prophecy in Order of the Phoenix.
Isaacs brings up Lucius' disheveled appearance in Deathly Hallows, raising the possibility that the Malfoy patriarch had begun drinking too much. The way Isaacs saw it, Lucius was in a no-win situation. Given everything he'd done, the man no longer had a place on either side of the war.
The Weasleys descend from Cedrella Black, a granddaughter of Phineas Nigellus Black. Sirius Black, Bellatrix Lestrange and Narcissa Malfoy all descend from Pollux Black (left). Note: This family tree excerpt (made using Ancestry.com) does not list the Weasley children in the correct age order.
We also meet Tom Riddle, who is, as it turns out, the heir of Slytherin. Present only in spirit, he has all the same been controlling Ginny, and having her act as Slytherin's heir. We also meet the Monster of the Chamber, a basilisk.
The Heir of Hufflepuff was none other than Cedric Diggory, who was well on his way to fulfilling the prophecy of the Heir of Hufflepuff when he was tragically murdered by Peter Pettigrew. Thus, the prophecy would remain unfulfilled forever.
He is proud
Pride is a key Slytherin trait, and arguably Albus has it in cauldrons. Sometimes this is to his advantage, like when he takes pride in having a friend like Scorpius Malfoy, who is funny and clever and kind, no matter what the rumours say about him and his parentage.
His reaction to Bella's death was akin to his reaction at the loss of the Cup, which was when he realised that his own immortality was jeopardised amidst war and his own death could have been near.
Nagini was Lord Voldemort's final Horcrux
Nagini was not only the last Horcrux to be killed, but also the last Horcrux to be created. In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux.
Why doesn t Harry use Avada Kedavra on Bellatrix? Harry didn't use that spell because he cannot bring himself to kill anyone. He is not a killer.