The big black dog crouched beside him, staring at the dog, raising his paw to look at the wound that had healed, and then at the broken wall.

Am I that good? Before, Zhang Lai asked if he could do an experiment with a little blood, and he didn't believe it when he said that the black dog blood broke the evil art.

Learned! In the future, when you encounter black magic, you will let your blood go!

Zhang Xiao also put down the bowl in surprise, the effect is so top?

I really just want to experiment with it, and my dad said that black dog blood is indeed useful, and it is humane, and the black dog blood without a trace of stray hair is more effective.

He looked back at Sirius, the big black dog making a classic meme from his previous life.

Well, it's human, no miscellaneous hair, top grade!

Rational analysis of a wave, this door was originally to be opened with blood, maybe the effect of black dog blood was not so strong, and the combination of the two caused such a powerful effect.

Zhang Xiao pinched her chin and nodded incessantly, this should be a reasonable guess.

But his eyes still kept drifting towards Sirius's body, and the research of the previous life showed that it seemed that taking blood every six months would not have any effect on the body.

If you continue to diverge your thoughts and wait for the stone basin on the island in the middle of the lake, and the boy urine pours it on it, can you make that strange potion lose its effect?

"Oh? Zhang, you can see that too? ”

Dumbledore was genuinely curious, and even it took him a few minutes to figure out what the spells were for.

While it is true that blood is the key to opening this door, this effect. Is it a bit of an exaggeration?

"Professor, I don't actually see anything."

Zhang Xiao cleaned up the bowl with a new cleanup, and said:

"In fact, there is a saying in the East that the blood of a black dog can cleanse evil, so I gave it a try.

It seems to work okay. ”

Dumbledore was silent for a moment, then quipped:

"Well, I'm afraid it would be very uncomfortable if Tom knew that his spell had been broken like this."

He shook his robe and strode in:

"Now let's see what kind of surprise Tom left us in the back."

He led the way into the doorway, followed by Zhang Xiao and Sirius, and the three of them lit their wands together.

Zhang Xiao didn't use his own light technique, and sometimes the brighter the better, for example, now, too much light is likely to cause a riot of the Yin Corpse.

What appeared in front of their eyes at this moment was a very strange sight.

The three of them stood on the shore of a large black lake, the surface of the lake was extremely wide and endless, even with Zhang Xiao's eyesight, they couldn't see the other side in the distance.

Did Voldemort hollow out the mountains or did he use the Traceless Stretching Charm?

Zhang Xiao prefers the Traceless Stretching Spell, because the larger the space, the better the effect of the Traceless Stretching Spell, and with Voldemort's strength, this is not difficult.

The cave is tall, or rather enchanted at the top, similar to Hogwarts celestial magic.

When you look up, you can't see the top of the cave.

In the distance, as if in the middle of the lake, a hazy, green light flickered, reflecting in the dead water below.

Except for the green light and the bright light from the wand, there was a darkness that was so thick that it could not be dissolved.

And these few bright rays of light don't seem to travel very far, and the darkness here seems to be denser and thicker than ordinary darkness.

"Zhang, how do you think Tom Voldemort would restrict those who find this place from going to that island?"

Sirius was about to speak, but suddenly realized that Dumbledore didn't ask himself, so he had to shut his mouth and sulk.

I know, but I don't say.

"Professor, I can't think of it, I don't know much about the Dark Lord, most probably from the diary."

Zhang Xiao shrugged her shoulders and said in a very complicated tone:

"And the journal spoke in a way that's like — like a big fan of Lockhart."

Dumbledore was amused by Zhang Xiao's words, and even had a kind of exaggeration that was overjoyed, perhaps because he thought of Tom saying the overwhelming praise in a flattering tone:

"That's really not Tom's character, well, let me see what Tom has in store for the visitor."

So the three of them continued to walk around the shore of the lake.

Their footsteps echoed as they stepped on the narrow rocks of the lake.

They kept going, but the scene around them did not change in the slightest: the rough walls of the cave on one side, and the boundless, mirror-smooth black lake on the other, with a mysterious green light shining in the center of the lake.

Sirius soon grew impatient, and he turned into a big black dog again, chasing his tail to relieve his boredom.

This is one of the negative effects of the Animagus, if you are in the Animagus form for a long time, it is easy to unconsciously carry the habits of shapeshifting creatures.

Sirius often takes on a large dog form in Azkaban.

Dumbledore quickened his pace and whispered, "From what I know about Tom, I think I've found a place." ”

Zhang Xiao's eyes widened, and his eyes had quietly opened, and he found that Dumbledore's hands seemed to be exuding something.

It was formless, like the scorching air on the asphalt under the sun, as if it had been distorted.

His hands slowly swiped through the air, as if trying to find and grasp something intangible.

In the eyes of the Dharma, an invisible thing suddenly appeared with a faint outline, like a tube or something.

"That's right, this is it!" Dumbledore said happily.

He slowly moved towards the lake, and Sirius didn't know what to change again.

He watched nervously as Dumbledore's copper-clasped toe moved to the outermost part of the edge of the rock.

Dumbledore was still dangling in the air and clutching that hand, holding his wand in his other hand, smacked the tip of his wand into his fist.

A thick green copper chain suddenly emerged from the depths of the lake and leapt towards Dumbledore's clenched fist.

Zhang Xiao noticed that the chains seemed to be connected to the pipe, and Dumbledore tapped his fist again.

The chain began to slide through his fist like a snake, coiling up on the ground, and the sound of tintinkling slammed against the rock wall with a loud echo.

The chain dragged something up from the bottom of the pitch-black lake.

It was a small boat, glowing green like a chain, floating towards the shore of the lake where Dumbledore stood, barely causing a ripple.

"How do you know it's there?" Sirius asked, surprised.

"Magic will always leave traces, and there is no need to make such a fuss, as long as you feel it with your heart, you will also feel that it is not normal there, Sirius."

Dumbledore said, with a soft thud, the boat crashed into the shore of the lake, "Very visible marks."

In particular, I taught Tom Riddle and knew his style. ”

"This ...... Is this boat safe? ”

"Oh, I think it's safe.

Voldemort needed a way to cross the lake smoothly in case he needed to visit or retrieve his Horcruxes, so as not to anger the guys he had placed in the lake. ”

Dumbledore's voice wasn't too loud, but he was very determined.

Zhang Xiao frowned and said, "Professor, I don't quite understand why Voldemort left such a passage, he is the builder. ”

This is also something he didn't understand when he read the original book in his previous life, why did Voldemort leave such a back door?

"Zhang, I'm afraid you're thinking about one thing wrong." Dumbledore was not in a hurry, but explained mildly:

"Voldemort was actually arranging a defense to his own level, and he was very proud to think that a defense that would make him feel intractable and uncomfortable himself, and that no other wizard would be able to pass.

Maybe I was left out by Voldemort.

So—I guess Voldemort must have prepared something for me at his destination that wasn't lethal, but would weaken me. ”

Zhang Xiao fell silent, he knew that Dumbledore's guess was right.

Because the defense was so well arranged, even Voldemort found it tricky, so he left a back door for himself?

Sirius looked at the boat in the water for a moment:

"So, if we cross the lake in the Dark Lord's boat, the Yin corpses in the water won't attack us, will we?"

"I think we have to be mentally prepared that if they find out that we are not Voldemort, they will definitely attack us.

So far, though, we've been doing well. They allowed us to get the boat up from the lake.

Okay, it's time to think about how to get across the lake. ”

Dumbledore stared at the boat for a moment, then whispered:

"Hmm—that's exactly what I thought.

Tom doesn't think about the weight, he only thinks about how much power crosses his lake. ”

Dumbledore paused: "It seems that I am the only one who will go up and try it first, and see if this ship can carry me."

It's not a show-off, but I'm afraid I have to say that I'm a little better than Tom thinks. ”

He stepped lightly onto the boat with his brass buckled boots.

It's like a heavy object going up, and the boat sinks a few points so hard that it almost sinks to the surface of the water.

Dumbledore jumped back to shore with agility, and before he could speak, Sirius jumped up impatiently.

He was too curious about how much power he had.

The boat sank slightly, as if it had only descended a little, and Sirius's face fell, and he looked at the water line in disbelief.

"How is that possible? Professor Dumbledore, I. Am I so bad? ”

Zhang Xiao held back her laughter vigorously, trying not to let herself laugh, mainly because Sirius's expression was too funny.

It's an emoji, which is even funnier than Nick Young's question mark face.

Dumbledore was also amused, and he smiled and said, "No, no, Sirius, in fact this little ship is not that accurate, because there is currently no spell that can accurately measure how strong a person is.

Otherwise, it will be enough for us to test the strength of both sides with this spell before we go to war.

I guess it's only a few vague spots, either still, or down, or like me. ”

Sirius reluctantly jumped back to shore, if it weren't for the ten years of squatting in Azkaban, I would definitely be much stronger now!

He looked at Zhang Xiao, who was smiling with a little pain in his cheeks, and said with a 'gloomy look':

"Zhang, this is a good opportunity, would you like to try it too?"

"This goes, this goes." Zhang Xiao lowered her head, clenched her fist into a fist and put it to her mouth, and coughed tactically a few times to calm down.

One step into the boat.

The surface of the lake is as calm as a mirror, and the boats are not moving.

Then, as if to save face, it sank slightly, similar to Sirius before, but not as big as his.

Sirius finally smiled with satisfaction, well, as long as I had someone with me, I wouldn't feel embarrassed!

Dumbledore was still smiling.

Zhang Xiao looked down at the boat, power? It's a very abstract concept.

Because it doesn't have the simple and intuitive mana value of the blue bar, how does this ship determine its strength?

"Boom!"

There was a thunderous explosion in Zhang Xiao's body, and his body was suddenly covered with a bright golden light.

As if suddenly reacting, the boat sank hard, a little worse than Dumbledore, but much stronger than Sirius.

Well, his smile is gone again.

What if you open the Sky Mirror?

Zhang Xiao slowly gathered the golden light on his body, and the boat slowly floated.

So that's the case? Is it just that pure strength, such as knowledge, skills, etc., is not included?

That's not interesting, it's too one-sided, skill and experience are an important part of strength.

Zhang Xiao shook his head and jumped back from the boat.

"Alright, the experiment is over, you see, isn't that what we're going to do from start to finish?"

Dumbledore then said slowly:

"Now we have two options, the first is that I go to the island alone in a small boat.

You will be taken directly to the island through Kreacher.

The second is that Sirius and Chang are transformed into the form of Animagus and boarded together, as they were just now. ”

Blake didn't speak, but directly turned into the form of a big black dog, and Zhang Xiao also jumped into the air and shook his body to become a peregrine falcon when he saw this.

Flapping his wings, he stood on Dumbledore's shoulder.

"Oh, it looks like you've all chosen, so let's go."

Dumbledore stepped aside, and the big black dog climbed aboard the boat.

Dumbledore then stepped in and coiled up the chains and stacked them on the bottom of the ship.

Dumbledore tapped the boat lightly with his wand, and it set off immediately, silent except for the soft rustle of the bow piercing through the water.

The boat was moving autonomously, and without their hands, there seemed to be an invisible rope pulling it towards the green light in the middle of the lake. Soon, the rock walls of the cave were out of sight, and they felt as if they were on the sea, only there were no waves around.

Zhang Xiao shook the bird's head from side to side, looked around, tilted his head to look at Dumbledore with a large white beard, and then looked at the black dog.

I don't know what's going on, but I miss the poem very much:

The old man chatted about the boyish madness, the left led the black, and the right was clear.

Sirius is the black, isn't he the eagle!

Inexplicable time!

As the boat moved, the light of the wand was reflected on the black water, flashing with golden light.

The boat cut deep ripples into the glass-smooth surface of the lake, like a groove in a black mirror......

At this moment, Zhang Xiao saw it—white as plaster, floating under the water.

Or rather—they!

The peregrine falcon's sharp eyes have long seen it, and the dense corpses are under the lake, everywhere.

Not to mention the thousands, but the argument that Voldemort didn't kill enough is a joke.

Because ordinary people are not human in Voldemort's eyes, killing 10,000 will not add a decimal point to the list in his heart!

Zhang Xiao stared at a yin corpse lying on his back.

She wasn't very old, she looked like she was eighteen or nineteen years old at most.

The body is strangely white, but it is not swollen by the bubble.

The eyes were foggy, as if they were covered with cobwebs, and the hair and robes swirled around the body like smoke.

"The Yin Corpse, a terrifying creature of black magic, you should have seen the raw material, that is, people.

Aside from fire and a few limited spells, the Yin Corps was able to withstand most of the damage, and I'm afraid Voldemort had taken a lot of effort to put together so many Yin Corpses. ”

Dumbledore whispered, the big black dog baring his teeth and letting out a low whimper.

"It's coming."

Sure enough, the green light seemed to finally get bigger and brighter, and after a few minutes, the boat gently bumped into something and stopped.

Zhang Xiao flapped her wings and came to the ground, and Sirius followed closely behind.

This is a slippery rocky island in the middle of the lake.

The island was about the size of Dumbledore's office, a flat, black slab of stone that was empty except for the green light source.

Now that I look closer, the green light is much brighter.

This green light is not a lamp.

Rather, it comes from a stone basin that resembles a meditation basin with a pedestal underneath it.

Dumbledore approached the stone basin, and the two hurriedly followed.

They stood side by side, looking inside the stone basin. A basin full of emerald green liquid, glowing with phosphorescence.

"This is the potion that Regulus drank? That kind of very painful thing? ”

Sirius's voice trembled slightly.

"I'm afraid so." Dumbledore also stared at the stone basin, the sleeves of his robe shaking upwards, the tips of his fingers reaching for the surface.

But it was blocked by something intangible.

He raised his wand and made some complex movements on the surface of the liquid, muttering something silently.

There was no movement, just the light from the liquid seemed to be brighter.

After a moment of probing, Dumbledore finally put away his wand.

"Oh, it seems Regulus did the right thing," Dumbledore stared more intently at the stone basin.

"This liquid can't be pulled in by hand, and it can't be separated, scooped dry, or drained.

Nor can it be made to disappear with an vanishing charm, deformed with magic, or otherwise altered its nature.

In addition to drinking it. ”

Dumbledore smiled softly:

"It's a pity that our purpose this time is not to get the contents of the stone basin, so we don't need to risk it.

Thankfully, Zhang's excellent luck helped us avoid a potential risk.

Think about it, when we spend a lot of effort and time finally finding this place, only to end up with a fake.

Oh - that's terrible. ”

Sirius's face was pale, his body trembling slightly, he licked his dry lips, closed his eyes, and when he opened them, he seemed to have made up his mind.

Zhang Xiao stared at the stone basin.

Zhang Xiao fell into thought.

Zhang Xiao wanted to add a bubble of boy urine to it.

Zhang Xiao is weighing the pros and cons.

Zhang Xiao made up her mind.

"Dumbledore, I want to drink these potions!"

Sirius let out a sigh of relief and said calmly.

Zhang Xiao closed her mouth.

————————————————————————————————

1. Commuter pass 2. Recommended ticket

The last few sentences imitate some wordplay, I hope you don't mind.

(End of chapter)