Ivan didn't expect Dobby and Kreacher to meet and make such a big contradiction, and immediately wondered if it was the right choice for him to summon Dobby.

Kreacher's emphasis on the house elves not turning their backs on their master's words also surprised Ivan.

If he remembered correctly, Rickliche had betrayed Sirius in the original space-time, indirectly causing Sirius's death, which was clearly not in line with what it had said.

Unless the original plane Clichery doesn't recognize Sirius as his master at all!

After all, Sirius was removed from Black's family tree by his mother decades ago, and he was not the legitimate heir, and if it weren't for the death or lockup of the Black family, Sirius wouldn't have been able to inherit the family business...

Kreacher should have been forced to obey Sirius's orders because of the rules, and most of his heart didn't approve of it, so he deliberately leaked the news to kill Sirius, counting on Bellatrix to become his master after Sirius's death...

Fortunately, the situation is different now, and if Regulus's body can be fished out of the lake smoothly this time, Kreacher's wishes, such a tragedy should not happen in the future...

While thinking in his mind, Ivan did not forget to restrain the two house-elves, Dobby and Kreacher, and ordered them not to have any more conflicts in this operation, so as not to delay the business.

Dobby, of course, will not disobey Ivan's orders.

Kreacher, considering that the operation had something to do with Regulus, also quieted down, and although he looked at Dobby like a pest, at least he didn't curse behind his back.

"Sirius, it's getting late, if we don't want to go dark at night, we'd better hurry!" Lupin glanced at the sky outside and couldn't help but remind.

"Okay, let's go!" Sirius didn't want to delay for a moment, so he asked Kreacher to teleport them to their destination.

Only Kreacher had been to the cave, and they had to be carried by Kreacher to teleport to the exact location.

In order to conserve mana, the teleportation was split into two parts, with Kreacher taking Sirius and Lupin with him, and by the time he returned, there were already beads of sweat on his forehead.

"Need a break?" Ivan asked worriedly.

"House-elves don't need a break, sir!" Kreacher shook his head hurriedly.

Ivan noticed that after destroying the Horcruxes, Kreacher's attitude towards himself had changed greatly, and instead of the disgust and disgust he had at the beginning, his words showed a little gratitude.

Ivan smiled, reached over his hand, and shook it with Kreacher.

Dobby, who was on the side, also stretched out his hand.

Kreacher's face showed a look of disgust, as if he had been stimulated by something, and screamed loudly. "Go away, don't touch me, you obnoxious bedbug!"

Dobby drooped his ears and looked a little overwhelmed by his outstretched hand, so Ivan had to take the initiative to grab Dobby, and then ordered Kreacher to perform the illusion.

With a whirlwind of the world, by the time Ivan came back to his senses, he was already standing in a strange place, seemingly on the edge of a cliff, facing the endless sea.

The salty and wet sea breeze slowly blows by, bringing a hint of coolness, and the sound of waves crashing against the rocks echoes in my ears.

Sirius and Lupin weren't far away, discussing something.

"Why don't you just take us into the cavern?" Ivan looked at Kreacher strangely, he had expected Kreacher to take them and teleport directly to the location where Regulus was dragged into the water by the Yin corpse.

"Kreacher can't sense it directly, sir!" The old house-elf gasped slightly, and said in frustration.

Ivan nodded, and it seemed that Voldemort had probably put some kind of shielding magic there.

"Kreacher, where shall we go now?" Sirius interrupted the conversation and looked at Kreacher in question.

"Just go in from there, swim for a while!" Kreacher turned his head, pointed to the narrow crack at the bottom of the cliff on his right, and replied.

"So what are you waiting for? I'll go explore the path first, and you'll all follow me! Sirius took the wand in his mouth and, without saying a word, jumped into the sea, swimming towards the dark crack.

Ivan stretched out his wand and tapped his head, blessed himself with a bubble head charm, and jumped into the water to follow.

A few people walked straight through the dark gap, and walked all the way along the narrow dark passages on both sides, the surroundings became darker and darker, and only a faint light could shine through the gap behind them.

After swimming like this for about a few minutes, he reached the end, and Ivan struggled to climb the steps, and his whole body was wet and uncomfortable.

"Lumos~" Sirius's voice rang out not far away, and the dazzling white light spread out in all directions centered on the wand, illuminating everything around it.

Only then did they realize that they were in a closed cave, and the surrounding rock walls were covered with silt and green moss, and they looked desolate.

"Are you sure that's it? Kreacher? Lupin looked around, and there was nothing but stone in the cave.

The old house-elf nodded, but after more than a decade, it only remembered that the entrance needed blood to open, and the location of the secret door was ahead, but it forgot exactly where it was.

"Let's give it a try, wouldn't we? Since Voldemort has set up protection, he must not be easily broken! Ivan thought for a moment and suggested.

"Nice idea!" Sirius did as soon as he thought of it, and immediately swung his wand and shot several beams of light, hitting different locations on the stone wall in front of him, blasting holes one after another.

"Divided!" Ivan was also helping, but this time the magic didn't work, and the spell hit the stone wall and disappeared without a trace.

Sirius and Lupin laughed, and that was it!

Ivan stepped forward, looked at the uneven stone wall in front of him, and thought of the scene of Dumbledore's induction probe in the original time and space, so he also tried to touch it gently with his hand.

The walls of the cave were rough to the touch, and Ivan entered with some magic power, but was turned away, and there was nothing unusual on the outside.

This disappointed Ivan, as Voldemort was so clever that he couldn't see through it.

If he hadn't been familiar with the plot and had Kreacher to guide him, he wouldn't have been able to crack it...

Ivan sighed in his heart that the slight complacency caused by the previous defeat of Sirius had been left behind, and now it seemed that there was still a big gap between himself and the Dark Lord in his heyday.

"Ivan, what are you doing here?" Sirius and Lupin looked at Ivan's movements strangely, and asked in confusion.

Ivan came back to his senses at this time, looked at the two people with puzzled faces, his face remained unchanged, and replied casually. "I'm looking for the movement of magic, and since some kind of magic has been used here, there will always be some traces!"

"Can you detect traces of a spell cast by perception alone?" Lupin did not doubt Ivan's words, but looked at him in surprise.

"I didn't expect you to grow to this point!" In addition to sighing, Lupin was also a little ashamed, he estimated that he would not be able to reach such a level in his life.

Ivan was embarrassed for a moment, he didn't actually perceive anything just now, just learned from Dumbledore's casual words.

"Ahem... Then the key to open this door should be blood, who are we? Ivan couldn't stand the gaze of Lupin and Sirius, and hurriedly coughed lightly twice and changed the subject.

"With Kreacher's blood!" The old house-elf stood up excitedly, grabbed a sharp gravel from the ground, and was about to cut his wrist.

But just then, Lupin reached out to stop Kreacher's actions.

"Stop, Kreacher! You've consumed enough just now, and you'll have to take us out with Dobby later, so you'll need to maintain enough mana and stamina! Lupin said.

"Then use me—" Sirius took a few steps forward, but was interrupted by Lupin before he could finish his sentence.

"Nope! Sirius, you can't either, the magic you're going to use later also requires a lot of blood, so I'll do it this time! Don't forget, I'm better than yours are recovering! Lupin said firmly, and then put his wand against his wrist.

The next moment, a dim light lit up at the tip of the wand.

Sirius didn't have time to stop it, and a large amount of scarlet blood flowed from Lupin's wrist, as if guided by magic, up the dark stone wall, dyeing it bright red.

"Remus! It's been my business all along, you don't have to! Sirius sighed, looking at Lupin, who had lost so much blood that his face became more and more pale, that he felt very uncomfortable.

Kreacher sobbed under his breath, and now Lupin reminded him of Regulus...

On that day more than ten years ago, it was here that it kept begging Young Master Regulus to use his own blood to open the stone door, but it was rejected by the young master...

Ivan couldn't help frowning as he watched the steady stream of blood, pulled out by the magic from the wound on Lupin's wrist.

When Dumbledore cracked this level in the original plane, he shouldn't have used so much blood...

Or is it that Voldemort requires a sacrifice that is not just blood, but the magic contained in the blood, and Lupin's blood quality is far inferior to Dumbledore, so it needs to be consumed more?

But that's right.

If not, Voldemort would have been reluctant to sacrifice his men while hiding the Horcruxes, and would have taken a Muggle, so why risk exposure and ask Regulus for a house-elf to be a victim.

The blood transfusion lasted for a short while, and a dazzling white light suddenly appeared on the stone wall, and the white light could be vaguely seen to take on the outline of an arch.

The remaining blood was gradually absorbed in, and the entire cave shook slowly, and the secret door in front of it was opened, revealing a doorway, and it was very dark inside and it was impossible to see anything.

Ivan immediately stepped forward and cast a healing spell to heal the wound on Lupin's wrist.

However, due to the massive blood loss, Lupin's face was pale and a little frightening, and his body swayed for a moment before he could stand firm.

"Are you alright? Lupin? Sirius hurriedly came up to help him, and asked worriedly.

Lupin shook his head, indicating that he was fine.

"Let's go... I'm not sure how long this door will be open! Lupin reminded.

Sirius felt more and more guilty, and solemnly patted Lupin on the shoulder, and then strode into the open doorway with his wand in hand.

Ivan walked behind Sirius, and there was another cave behind the cave, and the whole mountain seemed to be hollowed out, and the internal space was amazing.

In front of them was a large black lake that was incomparably wide, and there was no other shore in sight, and they were standing on the shore now.

Ivan couldn't help but take a few steps forward, crouched down and brought the glowing wand close to the surface of the lake, the white light reflected in the dead lake below, but it couldn't penetrate, only the darkness underneath...

"The water quality here is so bad, I'm afraid it's hard to see things clearly if we go down..."Ivan stood up worriedly, kept his voice as low as he could, and said softly.

To be honest, knowing that there are countless Yin corpses underneath, he has to sneak in to retrieve the corpses, which is something that only a fool can do, but unfortunately, he has to be a fool this time.

Sirius felt a deep sense of apprehension, a little harder than he had previously imagined.

Grunt...

The calm surface of the lake suddenly resounded with the sound of gurgling water, and in the faint fluorescence of the wand extended, pale and rotten hands stretched out from the bottom of the dark lake, covering the entire surface of the lake...

Seeing this scene, Ivan and the others felt a chill all over their bodies, they all knew that there were definitely a lot of Yin corpses, but they didn't know that there were so many of them.

"How many people did Voldemort kill?" Ivan looked at the pale arms that were as densely distributed as lotus roots in a pond as far as his eyes could see, and wondered if Voldemort had slaughtered a Muggle town, otherwise it would be impossible to create such a large army of Yin Corpses.

"Quick, drink! This potion can hide our vitality and make us almost like dead people for a short time. Sirius's face changed, and he hurriedly took a few dark green potions from the pockets of his wizard's robes and distributed them to everyone.

Lupin, Kreacher, and Dobby took the order without hesitation, and Ivan also took a bottle, uncorked the potion, and poured it down.

The dark green potion was very bitter in the mouth, like forgetting to put sugar coffee after it expired, and after swallowing it, the stomach felt as if it had been burned by flames, and it was painful.

After a while, the pain gradually disappeared, and a cold feeling spread throughout his body, and Ivan felt as if the blood in his body was frozen, and even his heartbeat became very weak...