When Voldemort "killed" Harry in the Forbidden Forest, she asked him whether Draco was still alive, as she knew that the only way she and Lucius could search for Draco inside Hogwarts would be as part of Voldemort's victorious army. Though she disliked Harry, she placed her family's welfare over Voldemort's goals.
She asked him because if Draco was still alive, she had something to fight for. She had a reason to lie to Voldemort. If Draco is alive, she needs to get into the school to see him and protect him, and helping Harry feign death was the easiest way to do that. But if Draco was already dead, she wouldn't have bothered.
Draco Malfoy's mother Narcissa was cold, cunning and devoted to the Dark Lord. But she was also a mother, which meant she was willing to risk everything to make sure her son was safe. When Harry survived Voldemort's Killing Curse for the second time, Narcissa pretended he was dead so she could get to Draco.
When Voldemort asked her to check if Harry was dead and she realised he was, in fact, still breathing, Narcissa seized her opportunity. Harry revealed that Draco was still very much alive, and she lied to her master in order to get closer to him.
Draco's refusal to reveal Harry's identity to Bellatrix was not because he liked him. It was because he believed that Harry was the only chance they had at defeating Voldemort. At first, Draco admired and revered Voldemort until he threatened his family's safety.
Harry tried to use this spell himself. The first time was against Bellatrix after she had killed Sirius. His attempt was unsuccessful because, as Bellatrix mockingly explained: 'You need to really want to cause pain – to enjoy it – righteous anger won't hurt me for long…'
She was remorseless and was cackling in glee after she had murdered Sirius. Bellatrix couldn't stop raving about it and showed it by singing “I killed Sirius Black” multiple times.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
Though Narcissa may not necessarily have agreed with all of bellatrix's life decisions, and her views, she certainly loved her sister, and will have certainly mourned her death.
In fact, Lucius' own support to Voldemort is revealed to come only under some form of duress, which is likely Narcissa's Veela Allure. When Lucius turns on Voldemort due to the reveal of his Horcruxes, Narcissa divorces him, taking 75% of Malfoy's wealth with her.
Only recently did I consider another explanation: that Lucius Malfoy is actually an emotionally abusive father, which manipulates Draco toward the Dark Arts.
Malfoy spots Harry and casts a Cruciatus curse; Harry, defending himself, using the Half-Blood Prince's Sectumsempra spell without knowing its effects. To his horror, it gashes Draco's face and chest, spilling his blood everywhere.
In Cursed Child – Part Two, Draco Malfoy explains to Harry that his wife, Astoria Greengrass, was sick for many years. Draco says she suffers from a “blood malediction,” which ultimately ends up killing her the summer before Scorpius's third year.
Secondly, she only cared about her family. She did not really care whether or not Harry was alive. At this point, she believed the Dark Lord did not have powers this boy had. She wanted to see Draco before anyone could kill him for his affiliation with the Dark Lord.
Narcissa was taught the philosophy of blood purity from a young age and grew up prejudiced in favor of pure-bloods. Thus, like her sister Bellatrix, she cut off contact with her sister Andromeda after she was disowned and burned off the Black family tree for marrying Muggle-born wizard Ted Tonks.
This nuance was lost on Lord Voldemort, who wrongly assumed Severus Snape held the Elder Wand because he was Dumbledore's killer, when in reality Draco had disarmed Dumbledore before Snape arrived on the scene, making Malfoy the wand's true new owner.
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.
Overview. Born Narcissa Black to Cygnus Black and his wife Druella Rosier-Black in 1955, Narcissa was the youngest child of three sisters, Bellatrix and Andromeda being her older siblings.
Bellatrix is approximately mid 40s in her first appearance and dies at about 46/47. Helena first played the role at age 41, and last played her at age 45, meaning there is only a two or three year difference.
Her sacrifice gave Harry the power of love, a protection spell sealed with the blood spilled by her death.
Though Harry encountered many opportunities that deemed Avada Kedavra necessary, it remains as one of the Unforgivable Curses Harry Potter never cast. For one, he viewed the spell as an immoral practice commonly used by users of the Dark Arts.
This theory suggests that each time he created a new Horcrux, that specific Horcrux diminished a part of his soul. Thus, his nose began to sink in, eventually disappearing altogether. Due to his tampering with dark magic, his human appearance evolved into a more snake-like state.
The answer is that Sirius wanted to deflect attention from the real Secret-Keeper. He probably hoped Voldemort would go after him so he could steer attention away from Pettigrew.
"Why didn't you tell her? Bellatrix?" asked Harry, "You knew it was me. You didn't say anything. " Because Draco knew Bellatrix would called the dark lord, and dark lord would killed Harry Potter and his friends, and Draco is not as bad as his family.
Helena Bonham Carter said that her character was afraid of Harry because she couldn't understand how a young boy was capable of overpowering Lord Voldemort.