No entanto, para responder à questão de como a cicatriz estava, de fato útil.
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Mais importante ainda, essa cicatriz é o que permite que a mente de Harry se conecte com a de Voldemort - que é como Harry descobriu um monte de informações relevantes em Relíquias da Morte :
Primeiro de tudo, uma palavra de Deus:
... In choosing which boy to murder, he was also (without realising it) choosing which boy to anoint as the Chosen One – to give him tools no other wizard possessed – the scar and the ability it conferred, a magical window into Voldemort's mind (JKRowling.com FAQs, "What is the significance of Neville being the other boy to whom the prophecy might have referred?").
Segundo, uma coleção de citações de Relíquias da Morte , para provar que a cicatriz era de fato o mecanismo para conexão mental:
“But it was supposed to have stopped! Your scar – it wasn’t supposed to do this anymore! You mustn’t let that connection open up again – Dumbledore wanted you to close your mind!”
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Harry felt badgered, confused, and Hermione did not help as she said in a frightened voice, “Your scar, again? But what’s going on? I thought that connection had closed!”
“It did, for a while,” muttered Harry; his scar was still painful, which made it hard to concentrate. “I – I think it’s started opening again whenever he loses control, that’s how it used to – ”
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He wished that he had not told them what he had seen and felt; it made Voldemort more threatening, as though he were pressing against the window of the room, and still the pain in his scar was building and he fought it: It was like resisting the urge to be sick.
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“I know it was your scar! I can tell by the look on your face! You were looking into Vol – ”
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His scar burned, but he was master of the pain, he felt it, yet was apart from it. He had learned control at last, learned to shut his mind to Voldemort, the very thing Dumbledore had wanted him to learn from Snape.
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The goblin looked slantwise at Harry, and the lightning scar on Harry’s forehead prickled, but he ignored it, refusing to acknowledge its pain or its invitation.
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Judging by their worried looks, and by the continued pounding of his scar, his sudden excursion into Voldemort’s mind had not passed unnoticed
A cicatriz é mencionada a qualquer momento Harry vê a mente de Voldemort (discutindo Sete Potter lutam com Ollivander, procurando por Gregorovitch, o castigo de Rowle, encontrando Gregorovotch em sua antiga casa, encontrando Gregorovitch, tirando a Varinha Ancestral da tumba de Dumbledore, encontrando a Horcrux desaparecida na caverna , etc ...)
O próprio Harry observa que ele o usa para descobrir informações:
“Harry, you aren’t supposed to let this happen anymore!“ Hermione cried, her voice echoing through the bathroom. ”Dumbledore wanted you to use Occlumency! HE thought the connection was dangerous – Voldemort can use it, Harry! What good is it to watch him kill and torture, how can it help?“
“Because it means I know what he’s doing,” said Harry.e
Harry wished his scar would burn and show him Voldemort’s thoughts, because for the first time ever, he and Voldemort were united in wanting the very same thing
e no final em Hogwarts:
“You need to find out where Voldemort is, because he’ll have the snake with him, won’t he? Do it, Harry – look inside him!”
Why was it so easy? Because his scar had been burning for hours, yearning to show him Voldemort’s thoughts? He closed his eyes on her command, and at once, the screams and bangs and all the discordant sounds of the battle were drowned until they became distant, as though he stood far, far away from them…
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Ele serve como detector tático de Voldemort , deixando Harry saber quando Voldemort está perigosamente perto ou se aproximando, avisando-o:
. Harry raised his wand, but as he did so, his scar seared more painfully, more powerfully than it had done in years.
“He’s coming! Hermione, he’s coming!” (DH, in Bathilda Bagshot's house)e
then the scar on his forehead burned like fire: as a Death Eater appeared on either side of the bike, two Killing Curses missed Harry by millimeters, cast from behind – And then Harry saw him. Voldemort was flying like smoke on the wind, without broomstick or thestral to hold him, his snake-like face gleaming out of the blackness, his white fingers raising his wand again – (DH, Battle of Seven Potters)
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“Good!” she leered. “Draco, pick them up! The Dark Lord is coming, Harry Potter! Your death approaches!”
Harry knew it; his scar was bursting with the pain of it, and he could feel Voldemort flying through the sky from far away, over a dark and stormy sea, and soon he would be close enough to Apparate to them, and Harry could see no way out. (DH, Malfoy Manor)
... (same place) ... Harry’s scar was blinding him with pain. Dimly he knew that they had moments, seconds before Voldemort was with them.
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É uma marca, uma identidade . Tanto para Harry quanto para seus apoiadores
“Indeed they are, Romulus,” said Lee, “so we suggest that you continue to show your devotion to the man with the lightning scar by listening to Potterwatch! (DH)
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Detector estratégico "Voldemort ainda está vivo"
The scar had not pained Harry for nineteen years. All was well. (DH, Epilogue)