Everyone began a search of the throne, with Amy inspecting the throne part and the others inspecting the countertops and sides of the throne.

Amy has performed a lot of search work, and most of the secret passages or secret passages in previous missions have been triggered by traps, which are usually set up in various unexpected places. However, the entire hall is a complete stone wall structure, and there is not even a single place to hide, unless a stone brick is the trigger mechanism.

And the throne that Amy was looking at now was the place where he felt it might be hidden. The throne is made of pure black iron and has a good design, and there are many dragon ornaments carved on the throne, and Amy speculates that Nefarian should also be a black dragon who knows how to aesthetically.

Amy examined the various ornaments carved on the throne one by one, and finally a flying black dragon ornament caught Amy's attention. On the whole, there is nothing suspicious about the ornamentation. But upon closer inspection, Amy noticed that the black dragon's head was tilted to its body.

If it was something else that went wrong, Amy could still think it was a workmanship problem, but in the black dragon's territory, there was a problem with the black dragon's carving, and it was obviously not so simple.

Amy tried to move or press the misplaced faucet ornament with her hands, but nothing seemed to happen. Just when Amy thought he was too careful, he remembered Karazan's secret passage and Khadgar's lockpicking.

"Onexia, come and have a look. Amy exclaimed.

Upon hearing this, Onexia stopped her search and walked quickly to Amy's side.

"What did you find?" asked Onexia.

"Look here, does the black dragon have any spells to manipulate the mechanism?" said Amy, pointing to the dragon relief.

"There's something wrong here, and you'll be able to find out. I'll try it first. Onexia said.

Immediately after that, Onexia stood beside Amy and began to cast the spell, and Amy turned on the Eye of Insight to observe the changes in the dragon pattern. As Onexia continued to cast spells, the spell energy began to continue to inject into the dragon relief, and at this time, the dragon relief also began to react, and the magic guide with the relief as the center began to float on the throne.

"It looks like you've found the trigger mechanism, but this mechanism only reacts to the black dragon's magic, so it's no wonder it's so secretive. Onexia said.

The throne reacted, and everyone came to Amy's side.

"We're probably going to have to face Nesario and Nefarian next, so everyone be on guard. Amy said.

"If there is any danger, we will evacuate immediately. Amy continued.

In the midst of everyone's nervousness, the throne began to rotate slowly, and then the throne platform began to rotate with the throne. A passage hidden beneath the throne slowly revealed.

The moment the passage opened, a fishy smell of flesh and blood quickly gushed out of the passage. Suddenly, the ladies present were so smoked that they pinched their noses.

"Oh my God, what is the black dragon doing here. How can there be such a strong smell, this is completely like this we elves. Sheena said with a displeased expression.

"This is Nefarian's secret laboratory, I'm afraid there are a lot of Nefarian experiments in it, and it has been closed all year round, and it will definitely smell like this after a long time. Onexia said.

"It's not so much a test specimen as a corpse. Amy said.

"Indeed, most of the test subjects ended up being corpses. Onexia said.

"This passage is too narrow, if something happens and it's inconvenient to escape, I'll go and see it first. Amy said.

"Well, Amy, be careful. To be honest, I can't stand such a question. Sheena said with a pinching of her nose.

"Then I'll be here to protect them, so don't worry. The queen said, covering her mouth.

"Why don't I go in with you, in case there's a mechanism inside that needs to be opened. Onexia said.

"You all hate the smell so much, don't push yourself too hard. Amy said.

"It's nothing, it's the final showdown with my father after all, and I need to witness it. With that, Onexia was already walking towards the dark passage.

"Stay safe yourselves, I'll go down and have a look. Amy said this and walked towards the secret passage.

Compared to the other passages in the dragon's lair, there is almost no light in the dark tunnels, and the walls and roads are covered with a layer of slime, which makes people feel creepy when they walk in it.

When Onexia entered the passage, a small dark purple fireball had been released in her hand for lighting. Under the reflection of the purple fire, Amy found that the entire passage was covered with black still flowing slime, and the whole passage made people feel like walking in the stomach of a monster because of the slime and smell.

"Have you been here before?" asked Amy as she walked.

"No, I didn't even know there was such an environment in the lair. Onexia said.

"I'm afraid Nefarian is here to conduct experiments related to the Old Gods, except for the corrosion of the Old Gods, I have never seen such a harsh environment. Amy said.

"But Nefarian has been studying the transformation of dragons, how could he suddenly start studying the old gods. Onexia said.

"Probably because Nesario is here, he has already undergone ancient deification when we fought him before. And I defeated his ancient godified body, and he probably came here to strengthen or heal the ancient god's body. Amy said.

"Father has gone further and further down the path of depravity, and it is hoped that this time he will be able to free his mad soul, which may be a relief for him. Onexia said with a little depression.

"Nesario is hell-bent on protecting Azeroth, and perhaps this is the source of his downfall. And the old gods only gave him strength, so you don't have to feel inferior too much because of him. Amy said.

This is indeed my father's wish all along, but it does not make up for the mistake he let go. But thank you for saying that. Onexia said.

After that, the two did not communicate again, and continued in silence. Amy didn't know what to say to Onexia, and Onexia didn't want to talk about Nesario.

After a few minutes, the two of them left the confines of the passage and came to a hall that was larger than the Ring of Black Wings. In the hall, there are some purple flames distributed as lighting sources. Then in the light of the purple fire, Amy was now surrounded by a number of rotting dragon corpses piled up around the hall, and these dragon corpses were the source of the stench. The floor of the hall was already scarlet with dragon blood, and the entire hall floor was almost soaked in the dragon's blood of these pus.

Even Amy, who had not reacted before, couldn't help but retch a few times when she saw this scene. Onexia was in charge of the walls, panting and vomiting.

"Nefarian estimated that he killed all the test subjects except for the modified drakes, and their corpses are here. Onexia said after a moment's calmdown.

"But why did he do that?" said Amy.

"According to your previous conclusion, the weakness of the transformed drake beast lies in the heart. You can find this as an outsider, how could Nefarian not know. If you look at the dragon corpses, the hearts should have been taken away, and when there is a problem with the quality, the most common solution for Nefarian is quantity. Since he had killed so many test subjects, it meant that an even more powerful monster was about to be created by him. Onexia said.

"You mean he used the hearts of the other modified dragons to modify Nesario?" said Amy.

Onexia didn't return, just nodded feebly.

"Then we don't have much time left, and we must stop him quickly. Amy said.

"Don't worry, go back to the queen first. Now that Nefarian's hidden lab has been found, let's be more steady. Onexia said.

"Welcome to the Lair of Blood, my sister and your dear human friend. ”

"Since you're here, you don't need to gather and leave. ”

"Now it's just a little bit of my sister's heart away from the success of my father's transformation. ”

As soon as Onexia finished speaking, a low, cold voice began to recall in the hall.

"Nefarian, you madman, I never thought of you as a brother!" Onexia shouted into the hall.

"I don't think of you as a sister either, you are just a good experimental material in my eyes. Now is the time for you to make your real difference. ”

As soon as the sound passed, the dragon corpses that had been around the hall began to squirm and tremble and crawl up, and the rotting pus and blood were still flowing from the dragon corpse to the ground. The entire hall turned into a hell of dragons' corpses in an instant.

"Run", Amy quickly pulled Onexia to turn around and run into the passage.