With a few "sorry", Clark and the others straddled Neville's lying body on the ground, leaving his toad with him, hoping that he wouldn't be as unlucky as Duan Yu.

Walking through Hogwarts Castle in the middle of the night, the surroundings are silent and dark, and the moonlight spills in through the high windows, casting snow-white fences on the ground.

The four little wizards were on high alert in their invisibility cloaks.

Fortunately, they are still young, and the invisibility cloak is big enough, so that it can cover the four of them, and there is no terrifying sight of eight feet walking on the ground by themselves.

But even so, in such an eerie castle, strange oil paintings hung in the corridors, metal armor beside them occasionally "clicked", and the sound of "whirring" swirled through the empty classrooms, making it impossible to tell whether it was the wind or the ghosts reveling.

Such a terrifying and strange sight reminded Clark of the time when he was playing haunted houses in Happy Valley, only then he knew that it was all fake, and now, he also knew that it was all true.

However, the invisibility cloak is also worthy of being an artifact given by death, and the effect is really outstanding, and the four of them have no danger all the way, smoothly passing through the blockade of Lady Loriss and Peeves, and arriving at the end of the corridor on the fourth floor.

At this moment, the door had opened a crack.

"We're going to have to hurry up," Harry said hurriedly, seeing this, "Looks like Snape has made it through the Lowe without a hitch." ”

As he spoke, he reached out and pushed the door open.

However, Clark immediately stopped him, "Wait. ”

Harry looked at him in bewilderment, but Clark just pointed at his wand, and magic gushed out, an invisible force slamming into the door.

The wooden door creaked and opened inward, as if it had only been pushed open by the passage of the hallway.

Then, a thick cloud of black smoke fell abruptly from the top of the door frame, and silently corroded the masonry into small holes in the ground.

"Hiss~"

Ron and Harry gasped in fright when they saw the power of the black smoke, contributing to global warming.

"If you take any risk, you must watch out for this trap," Clark taught Harry another lesson.

As the saying goes, knowing oneself and knowing one's opponent is invincible, Clark has not been idle in recent times. Compared to Harry and Ron, he knew who he was up against, so he naturally wouldn't miss the opportunity to gather information about his opponents.

Before becoming a Defence Against the Dark Arts teacher, Quirreco was a professor in Muggle studies, and he may not know much about Muggle technology, but as a wizard who had traveled deep into the troubled regions of Eastern Europe, he must have learned a lot from the battlefield.

So even if he has the memory of his previous life and knows the plot of the original book, Clark is still not careless, because he doesn't know how much his butterfly wings will change the original plot.

At least his caution this time was not in vain, and judging from this trick trap, this Quirrell really became more cunning and ruthless.

After making sure that there was no danger, Clark and the others walked through the door, but the next moment, they encountered a new problem, that is, Hagrid's three-headed dog, Louwi.

The three of them might have seen the big dog before, but this was the first time Clark had seen it.

"What a mighty guy! No wonder Hagrid loved it. ”

Clark sighed secretly in his heart, compared with the pit bull in the movie in his previous life, which was designed to take care of young children, the big guy in front of him is closer to the image in Greek mythology.

A body of strong and strong muscles, as if stranded with steel wires, forms a line full of power.

The hair on his body was like a steel needle, with a dark color. Some vital parts, such as the neck, abdomen, back, etc., are even densely covered with dark red scales, as if they were made of hot magma.

Three hideous dog heads, more like hungry wolves, squeezed around their thick necks, will touch the ceiling of four or five meters. This may limit their ability to bite, but it also increases their viewing area.

At this moment, the four of Harry are wearing invisibility cloaks, and it stands to reason that this big guy should not be able to see them.

Then, when Clark and the others walked into the house, the big dog let out a low whimper, like thunder, and made a defensive gesture, and the three dog heads were all twitching and sniffing wildly towards them.

Harry and the others were nervous.

"Can it see us?" Ron's voice trembled as he saw the six scarlet eyes of the fox all look this way.

"I'm afraid yes," Clark guessed in a low voice, "Legend has it that this three-headed dog of hell is guarding the souls of the dead at the entrance to the underworld, and this cloak of invisibility is also given by the god of death in legend, so it's not surprising that it can detect us." ”

"Don't talk about it," Hermione interrupted, "look what's at his feet. ”

"It looks like a harp," Ron looked at best, "it must have been left by Snape." ”

At this moment, the three-headed dog Lu Wei had roughly confirmed that there was indeed an invisible creature in front of him, so he opened three large mouths of blood, revealing sharp razor-like teeth, and the fishy saliva dripped on the ground, and immediately "sizzled", bursts of fishy dark green smoke appeared.

Legend has it that the saliva of the three-headed dog is highly poisonous, and the aconitum that Snape asked questions about in the first lesson is said to have grown from the place where it dripped saliva.

Of course, Lu Wei is not as good as the golden demonic beast in myths and legends, but the toxicity of its saliva cannot be underestimated.

However, before Clark could remind, Harry violently lifted the invisibility cloak covering his head, stuffed the handmade flute that Hagrid had given him for Christmas into his mouth, and blew it vigorously.

They had already experimented with it, and unlike the illusion invisibility cloak on the market, which resembled a disillusionment charm, Harry's effect was more akin to hiding a person into another dimension.

Whether it's light, sound, or smell, it hides it so well that even if they shout loudly inside, only a faint sound can be heard outside.

Therefore, if you want to hypnotize Lowe with music, you have to take off the cloak of invisibility.

Fortunately, Hagrid's method did work, even if Harry didn't understand music, and the flute was not in tune at all, then Louwe's eyelids began to droop as soon as he heard the sound of "woo-la-woo-la".

"It works!" Ron shouted happily, "Harry, go on." ”

Harry naturally wouldn't stop, barely changing his breath, just blowing vigorously.

The empty room, the unpleasant music echoed repeatedly, it was almost magical, but the three-headed dog shook his head, his tongue drooped out, and his roaring stopped.

Slowly, the three-headed dog's eyelids drooped lower and lower, and finally he staggered to his knees, and then fell down violently, and after a while, he let out a thunderous snoring sound and fell into a deep sleep.