Looking at the sudden change in Bai Fei's expression, and the words that stopped in the middle of speaking, Ye Dong asked puzzledly, "Brother Bai, what's wrong with you?"

With a frightened look, Bai Fei looked left and right, and then suddenly lowered his voice, as if he was afraid that someone would hear him, and whispered: "Young master, where is this? How can there be a kind of feeling, which makes me feel like I am in a blood prison?"

Regarding Bai Fei's words, Ye Dong was a little skeptical that his ears had misheard, this Purple Hidden City shrouded in the formation would actually give Bai Fei a feeling of being in a blood prison

"This is Purple Ghost City, located two or three hundred meters underground, it should be built by some mysterious general force, and it has nothing to do with the Blood Prison at all, I called you out in the hope that you can help me break this formation and find the right path, how can you feel like a Blood Hell here?"

Ye Dong simply told Bai Fei the origin of this place, and he was also very curious, although he had not really been to the Blood Prison, but according to Mo Xifeng's reminder, if you want to truly turn the Blood Spine into a good sword, it is best to enter the Blood Prison and take out the Prison Stones hidden in the Eighteen Prisons one after another, so he also wants to take this opportunity to understand what it is like to be in the Blood Prison.

Bai Fei pointed to the hazy black mist floating in the air and said, "Young Master, it's the feeling that these auras bring me!"

Following Bai Fei's fingers, Ye Dong looked at the black mist, and couldn't help but ask in surprise, "This, is it aura?"

Bai Fei glanced at Ye Dongdao with strange eyes: "Could it be that the young master can't even feel the aura?"

"I thought that this gas was poisonous, so not only did I close my nose, but I also shrouded my whole body in my aura to prevent this mist from entering my body. ”

In Ye Dong's mind, since these fogs are similar to the ghost qi on the Dead Soul Mountain, especially in this mysterious purple city full of dangers, then presumably the fog is also poisonous, for the sake of safety, it is naturally better not to have any contact.

Bai Fei nodded and said, "The young master's worries are needed, but these mist are not only not poisonous, but also extremely pure aura, the young master can feel it." ”

To be honest, Ye Dong really didn't believe that these mist were aura, but he also knew that there was no reason for him to lie to him, so he opened his nose and reined in his aura.

The black mist quickly penetrated into Ye Dong's nostrils, not only did it not have the slightest fishy smell, but there was a faint freshness, and when inhaled into the body, it was even more refreshing, making people feel refreshed, refreshed, and comfortable.

The most important thing is that, as Bai Fei said, these mist are extremely pure aura!

As for the purity of the aura, it was even purer than the Tiandan Peak of the Tianxin Sect and the aura gathered on the peak of the Dragon Peak of the Dragon Elephant Sect.

Although aura is ubiquitous between heaven and earth, the purity of aura varies according to different regions and environments, and all sects or families with a little strength will choose a place with higher aura purity as much as possible as a place to live, so as to facilitate the cultivation of the children of the family.

Whether it is the Tianxin Sect or the Dragon Elephant Sect, they can be regarded as powerful forces, and the Taixu Mountain and Dragon Elephant Mountain that they chose as the mountain gates, the purity of the aura is naturally extremely high.

However, the aura in those places was not as pure as the aura in the purple city in front of him, so you can imagine the surprise and puzzlement in Ye Dong's heart.

"Brother Bai, why is the aura here so pure, and is it possible that there are also such aura in the blood prison?"

Although Ye Dong has never entered the Blood Prison, he has absorbed the aura from the Blood Prison, and compared to the aura of the outside world, Ye Dong is even more willing to absorb the aura in the Blood Prison, because the aura there is not only extremely pure, according to his own words, it is the aura of the king, and he has a domineering aura that other auras do not have.

However, Ye Dong didn't feel that the aura in front of him was indeed of high purity, and there was any similarity between the aura in the blood prison that he had absorbed.

Bai Fei's face showed a blank look, because Ye Dong's question involved what he had done in the Blood Prison, which he had no memory.

Fortunately, this time he didn't fall into a state of madness because of too much thought, and fixed his mind: "I don't know what the aura in the Blood Hell is like, but when I think about it, I think it's a bit similar to the feeling of the Blood Hell here."

"For what?"

"Does the young master know about the Prison Stone?"

It's really a coincidence, Ye Dong just thought about the Hell Stone, and Bai Fei actually mentioned it right after.

It is impossible for a prisoner in the blood prison to have a chance to talk, so Bai Fei naturally did not know that Ye Dong had already learned about the existence of the Prison Stone from Mo Xifeng.

Ye Dong nodded and said, "I've heard of it." ”

"I can only think of so much, the aura here feels like a prison stone in a blood prison, and I don't know the rest. ”

Although Bai Fei's answer sounded a bit plausible, Ye Dong thought about it for a while, but he vaguely deduced a possibility.

No matter what the Hell Stone is, since its main role is to suppress the Blood Prison, it must be full of powerful power, and it stands to reason that it should also be able to release aura.

Bai Fei is in the blood prison, and they may not be able to cultivate, but there must be an aura, so that they are in a state of immortality, and this aura should come from the Hell Stone, not those blood auras over the sea of blood!

Bai Fei and they have been surrounded by this aura for many years, even if they can't remember the details of the situation in the blood prison, they can naturally vaguely remember the feeling that this aura brings them, so at this moment, when they feel the aura that exists in the Purple Ghost City, they will have a familiar feeling.

Ye Dong felt that his inference should be ** not far from ten, and in that case, another question would arise, that is, where was the aura in the purple ghost city in front of him released?

Could it be that they also come from the Hellstone, or that something of the same nature as the Hellstone?

If such things can be found, then can they also be used as forging materials for the blood spine, so that the blood spine can exert amazing power?

And after continuing to think about these questions in depth, Ye Dong once again thought of an extremely important question!

Assuming that the questions you just thought of were all right, that is, there was something in Purple Shadow City that was completely similar to or simply the same kind of Hell Stone in the Blood Prison, then-

Could the people who built the Purple Ghost City and the people who built the Blood Prison also have some kind of relationship?

This question made Ye Dong's heart shake violently.

Perhaps, the truth of some secrets that have been bothering me for a long time is likely to start from this purple ghost city and slowly surface little by little!