Harry walked to Snape's office step by step, he didn't understand why he was suffering this crime, he sensed Voldemort's situation, he sensed Azkaban's problem, he could even vaguely sense the Dark Lord's joys and sorrows now, this should be extremely important, at least not worse than the information Guris got, he muttered to himself, but why did he come to Snape to learn some brain defense techniques.

When he got there, he stopped at the door, hoping he was somewhere else, and, taking a deep breath, he knocked on the door and walked in.

In the shadowy room, there are more than 100 glass bottles containing the juice of animals and plants of various colors. In one corner was a cupboard full of things that Snape had warned Harry, not for no reason, to snatch. Harry's attention, however, turned to the table, where there was a shallow, stone-filled pool of words and symbols in the candlelight. Harry had seen it before—it was in Dumbledore's meditation basin. Wondering what the thing was doing, Snape's cold voice came out.

"Close the door behind you, Potter."

Harry did as he was told, and he felt like he was holding himself in prison. But as he turned back to his room, Snape stepped into the light and quietly pointed to the chair on the other side of his desk. Harry sat down, and so did Snape, his cold black eyes staring at Harry with a look of displeasure on his face.

"Okay, Potter, you know why you're here," he said. "The Headmaster has asked me to teach you brain defense, and I only hope you're more familiar with it than potions."

"Okay," Harry said simply.

It's not your average lesson, Potter," Snape said, his eyes blinking sinisterly, "but I'm still your teacher, so you should call me 'sir' or 'professor' at all times." ”

"Yes. Sir," Harry said.

Snape looked at him with small eyes, and then said, "Now let me introduce the Brain Defense Technique, the branch of the mind that magic blocks against the invasion of magic and the influence of magic. ”

"But why does Professor Dumbledore think I need it, sir?" Harry said, looking strangely at Snape's glasses, waiting for his answer.

Snape looked at him contemptuously for a moment, "Apparently you can get an answer, Potter?" The Dark Lord is very skilled at soul retrieving—"

"What's that? Mr? ”

"It can read his thoughts and emotions from another person's mind, and of course he can forge his own memories—"

"Can he forge memories?" Harry spoke quickly, confirming his worst fears, and a sense of loss swept over his mind.

"You're not shrewd, Potter," Snape said, his dark eyes glinting. "You don't know any of this, so your self-righteous intel isn't as important as you think, is it?"

Snape paused for a moment, clearly pleased to embarrass Harry. "The mind is a complex, multi-layered thing, Potter - or at least, the mind of most people." He smiled fakely. "However, it is true, the dementor can control a person's mind, can enter the mind of a victim and command him correctly. The Dark Lord, for example, always knows if someone else is lying. ”

"Then why is Guriss able to be an undercover agent, shouldn't his mind be exposed? Could it be that Voldemort deliberately let him go and passed on false information? Harry was suddenly excited, and even Snape's hateful face didn't seem so terrible to him.

At the mention of Gurris, Snape's cheeks twitched, he was humiliated more than once by Mo Wen's face, his hatred for Mo Wen was second only to Harry, and he said with a blank face: "Because brain defense can shut down your thoughts and memories, and can return untrue information without being detected - and Gurris's brain occlusion is a mastery -" He glanced at Harry before spitting out a few words "Far beyond your imagination." ”

"Okay, then, why do I have to learn Occlumency" Harry was a little disappointed.

Snape looked at Harry and pointed a long, thin finger at Harry.

"For there is now evidence that when your mind is very relaxed—such as when you sleep—you share the thoughts and feelings of the Dark Lord. The Headmaster felt that this was a mistake, and he wanted me to teach you how to shut your mind to the Dark Lord. ”

Harry's heart twitched quickly again,

"But why would Professor Dundewell want to stop him?" He asked suddenly. "I don't like it, but it's useful, isn't it? I mean, I can see Azkaban being breached, and if I had seen him sooner, we might have been able to stop it, wouldn't we? Mr? ”

Snape stared at Harry for a moment, still gagging his mouth with his hand. When he said it again, his voice was deliberately slowed, as if each word weighed a thousand pounds.

"It seems that the Dark Lord was not aware of the relationship between you and him until now. By now, you seem to have experienced his emotions and share his thoughts, and it doesn't take any special effort. But, until then, your short dreams—"

"Your dream is a powerful mental shock to the Dark Lord—"

"I observed it from the angle inside the serpent's head, not his!"

"It's because the Dark Lord was in a special place at that time that you know the serpent's mind," Snape roared. "That's when he's controlling the snake, that's why you dream that you're in the snake." Snape stroked a spot on his left arm that seemed to be burning.

"So who-he-knows where I am?"

"I think so." Snape said coldly.

"How do you know?" Harry said eagerly, "That's just Professor Dumbledore's speculation, or—?" ”

"I told you," said Snape, sitting rigidly in his chair, his eyes narrowed, "calling me 'sir.'" ”

"Yes, sir," said Harry, impatiently, "but how do you know-"

"We can know very well," Snape whispered. "The point is, the Dark Lord now knows that you can understand his thoughts and feelings. He is also ready to change this fact. That means he can also know your thoughts and thoughts—"

"So he can try to drive me to do something, too?" Harry suddenly asked eagerly, "Sir?" He hurriedly added the sentence.

"Probably," Snape said, coldly and nonethelessly. "The most important thing is that Professor Dumbledore seems to want you to be involved in something, but your unsuspecting brain will undoubtedly let them leak out."

Harry opened his mouth, but couldn't say anything, and he realized that what Snape said might be true.

"Now let's get back to the brain defenses, stand up, and pull out your wand, Potter."

Harry stood up, looking at Snape's wand in his hand, uneasy. They stood on opposite sides of the table, staring at each other.

"You can use your wand to try to disarm me, or use whatever you want to protect yourself," Snape said.

"What are you going to do?" Harry asked, still nervously looking at Snape's wand.

"I'll try to break into your heart," Snape said softly. "I'm going to see how well you resist. I have told you to be ready to resist the spell at any time. You will find that you need a power similar to this. Protect yourself, now, Dementor! ”

Before Harry could prepare, Snape began to attack, even summoning some forces of resistance before he could summon some resistance. The office suddenly vanished before his eyes; Picture after image passed through his seemingly blind mind like a glittering movie.

When he was five years old, he watched Dalí ride a new red bicycle, and his heart was filled with jealousy. When he was nine years old, he was thrown into a tree by a dog and a cow, and the Dursleys laughed on the lawn below. He sat under the Sorting Hat, and it told him that he could do well in Slytherin. He watched Cho Chang at the opening ceremony, watching her chat with Guris to the point of jealousy.

The scene then cuts to the rejection of his invitation to Cho Chang, with Guris' wand aimed at him.

"No," a voice came to Harry's head, as he remembered what was next, "you can't look at that, you can't look at that, that's my private business—"

He felt a sharp pain in his knee. Snape's office came back into view, and he realized that he had fallen to the ground; A foot slammed into Snape's desk in pain. He looked at Snape, who lowered his wand and rubbed his wrist. There was a terrible scar there, like a burnt mark.

"You've let me trespass too deeply. You lose control of yourself. ”

"Do you know everything I see?" Harry asked, not sure if he wanted to hear an answer to the question.

Snape's eyes were complicated, looking at Harry, with sympathy and pity, and resentment and the pleasure of revenge, his expression was so complicated that Harry wondered if it was his eyes that were delusional.

Soon Snape reverted to his indifference, and he said mockingly, "No wonder you don't have a good relationship with Gurris, that little girl is Guris's girlfriend!" ”

"It seems that Dumbledore asked me to teach you true, if Guris comes, looking at your pictures of coveting his girlfriend, he will kill you directly!"

"Tsk, it's really an ambition that doesn't meet your own conditions, it seems that your mudblooded friend also abandoned you and threw himself into the arms of Guris, didn't he? ――”

Harry felt nothing but an icy flame burning within his body and his ears rattling.

Harry lowered his head, and his eyes turned into vertical pupils.

"Potter, keep your head up!" Snape sneered again and raised his wand, "Dementors!" ”

But he was greeted by a pair of cold snake-like eyes.

"Except for your weapons!" Harry's voice was hoarse, and a red light flicked off Snape's spell, and then he entered a frame.

One bright afternoon, by the lake at Hogwarts, several figures surrounded a dark-haired man in the middle, one of them used magic to hang the black-haired man upside down, and then a woman with thick shoulder-length red hair and a pair of amazingly green almond eyes walked over-

"No!" A hand gripped his arm tightly, as tight as a pair of iron tongs. As if out of his dream, Harry returned to the cold classroom, and Snape turned pale with rage.

"Isn't it fun?"

"So," said Snape, grappling Harry's arm so tightly that Harry felt his hands start to feel numb, "So, have fun, Potter?" ”

"N-no." Harry said, trying to break free of his arm.

It was a terrifying sight: Snape's lips trembled, his face pale, his teeth bared.

"Interesting man, your father, isn't he?" Snape said, shaking Harry so hard that he shook Harry's glasses off his nose.

"I-no-"

Snape threw Harry out with all his might. Harry slammed into the basement floor.

"Don't tell anyone what you see!" Snape growled.

"No," Harry said, standing as far away from Snape as he could, "No, of course I wouldn't-"

"Get out, get out, I'll never see you in this office again!"