The powerful Emperor Sword quickly slammed towards the Tengu, and the Tengu was unavoidable at the moment. However, its face did not show the slightest expression of surprise and shock, but the anger that had not been extinguished in its eyes burned even more wildly.

"Roar!" a roar shook the four wilds. Chongxiao's anger erupted wildly from Tengu's body, and it seemed that if it had been angry before, it was now completely angry.

It seems that Huan Yin's imperial sword really made Tengu very unhappy. It had suffered a loss, and this time it seemed to be showing signs of a loss, and it felt that it had been greatly insulted.

The huge front claws were grasped, but they did not reveal any power of heaven and earth, nor did the sharp edge of the claws appear, but there was no surprise at all for Huan Yin, and a pitch black flash appeared, which happened to be the same thickness and size as the light of his imperial sword.

This time, Huan Yin saw the black that appeared clearly. And the next moment, when his extremely confident Emperor Sword rushed to the black, his face suddenly sank.

The Emperor Sword was no different from the previous fire dragon at all, and it disappeared inexplicably the moment it touched the black, unable to show the slightest strength.

You know, this is Huan Yin's Jin Yuanli Emperor Sword with all his strength, and it is gone, he really can't figure it out.

However, Huan Yin could only watch the Emperor Sword disappear, and he couldn't make any moves at all. Then, the tengu grabbed it again, and the only remaining black mangs shattered into countless fragments in an instant. At this moment, Huan Yin suddenly felt a backlash that had been forcibly broken by the Dao Law surging into his body.

So, Huan Yin's throat was sweet, and a mouthful of blood spurted out without warning.

The monks below really saw everything in the process. But Huan was inexplicably injured because of something, but none of them understood.

Huan Yin instinctively stepped back a distance, trying to suppress the injury that was nothing to him. I just wanted to start again, but it was suddenly dark in front of me.

"Not good!" Huan Yin's heart tightened, knowing that something was wrong.

Then, his eyes returned to light, but he first heard Xue Buping's shout: "Second Ancestor, be careful behind your back!"

Huan Yin hurriedly turned around, only to find that Tengu had been behind him at some point. And judging from the nameless anger that existed in Tengu's ugly eyes, it was obvious that Tengu was no longer planning to continue to entangle with Huan Yin any longer. It wants to move in earnest, and directly kill Huan Yin, a little tribulation monk who doesn't know the height of the sky, in the Moon Tribulation!

The huge claws had already been raised, and while Huan Yin was looking back, he suddenly pressed down towards Huan Yin, bringing only cold killing intent.

This time, it was Huan Yin's turn to feel caught off guard. He didn't expect that Tengu would really start a fire, and it would be so terrifying.

Subconsciously, Huan Yin could only raise the long sword in his hand to resist. So not long after, the sound of gold and iron colliding sounded in front of Huan Yin. And a terrifying thrust also passed to him through the long sword, so that he couldn't support it at all at this moment, and flew backwards violently.

But fortunately, Xingtian is a super nine-grade immortal sword after all. It still blocked the sharp claws of the tengu, and even if Huan was hit hard, he would not be seriously injured.

Flying upside down for a long distance before stopping, Huan Yin just stood still, but a second mouthful of blood spurted out.

After feeling the state of his body a little, Huan Yin felt a little better in his heart, thinking that he had saved his life thanks to Xingtian just now.

However, when Huan Yin raised Xingtian and was about to defend the enemy again, his face suddenly changed.

The original silver five-foot long sword body was covered with a thick layer of black mist at this moment, for some reason. And isn't this black fog the inexplicable darkness that Tengu has cast many times before?

For this kind of black fog, Huan Yin naturally didn't dare to reach out and touch it. However, when he wanted to use his spiritual power to force the black mist away, he found that he couldn't do it anyway. On the contrary, his spiritual power, after rushing above those black mists, disappeared inexplicably, as if a stone sank into the sea.

"What the hell is this!" It wasn't the first time that Huan Yin had dealt with the darkness that Tengu had created, but this was the first time he had been in such close contact.

However, even when the black mist was stained with his sword, he found that he still had nothing to do. On the contrary, he found that due to the existence of the black mist, the sword power of his Super Nine Rank Immortal Sword was greatly damaged, and he was almost unable to take it.

In other words, if this black mist is allowed to exist on the sword, Huan Yin's punishment will be abolished!

Huan Yin knew that now was not the time to fight, but Tengu didn't seem to intend to give Huan Yin a chance to breathe. So, Tengu rushed up again, and Huan had no choice but to retreat.

Huan Yin retreated, and at the same time, he continued to form layers of vine and wood giant nets in the air with the power of the source of wood to block the attack of the tengu.

However, every day when the dog arrived, a darkness emerged, and the huge net formed by Huan Yin was wiped out. And as much as Huan Yin knotted, the Tengu wiped as much, and it seemed that Huan Yin's wood source power had no meaning at all under that darkness.

But fortunately, although Huan Yin can't resist the tengu, he can keep a distance from the tengu for the time being while retreating and resisting. And taking advantage of this opportunity, he naturally wanted to study what happened to his fairy sword.

After many attempts, Huan Yin still didn't get any results. Even if he forced the Golden Source Power to the Heavenly Punishment Heaven, the tightly wrapped black mist was like a bottomless pit, and those who came did not refuse, and it would not dissolve at all.

"Forget it, don't bother with it, I'm afraid this black mist is made by the source power of the tengu. Finally, when Huan Yin and Tengu chased in circles in the air for a long time, and Huan Yin also spent a lot of effort trying to break through the black fog but failed, Xue Buping's voice came out.

At this time, although the black fog still gives people a deep and difficult to understand. But after being in contact for so long, Huan Yin and Xue Buping could feel that the black mist was not really nothingness, but contained a terrifying power. It's just that this power is too deep to be detected, so it makes the black fog itself seem extremely weird.

The deep power above the black fog is the feeling of the source power. And the tengu is a source of cultivation, I am afraid that this black fog is the embodiment of its source power.

It's just that such a weird and mysterious source power, Huan Yin has never heard of, so he can only ask Xue Buping: "Ancestor, what kind of source power is this, why is it so weird and difficult?"

This time, Xue Buping was silent for a long time, obviously after a lot of thinking. Then, his somewhat uncertain voice poured into Huan Yin's ears again: "Perhaps, we can call it the Dark Source Force. ”

"Dark Source Force?" Huan Yin was a little surprised, and subconsciously asked.

Xue Buping continued: "To be honest, this title is also my imagination, and I don't know exactly what it is. However, it seems to me that the darkness created by the tengu can be swallowed and concealed, as if it is a source force that can cover everything. This source force, somewhat similar to the feeling of blindness, but also obviously stronger, may come from the truth that darkness blocks and obscures everything. ”

"But no matter what this source power is called, I think that in short, Tengu's cultivation should be an extremely out-of-the-way source power. In fact, the source power of the side door is often not very effective, but unfortunately, the tengu seems to have found the strongest one among them. ”

"I think I'm afraid that until you can manage to break through the source power of the tengu, the black mist on the sword will not be erased in any way. ”

Hearing this, Huan Yin's heart had sunk a lot. He could feel that what Xue Buping said was probably right, but even a well-informed existence like Xue Buping didn't know what the source power of the tengu was, and what was he talking about to break it?

I'm afraid that the only lucky thing now is that Huan Yin can feel that his Xingtian is not permanently eroded by the strange black fog of the tengu. As long as he finds a way to break through the black fog, Xingtian can still return to his former state.

But in this way, Huan Yin has to try to break through the black fog of Tengu no matter what. And he could imagine that if he could really break through the black fog of the tengu, it would almost be equivalent to breaking the strongest power of the tengu. In this way, it may not be a problem to defeat the tengu, and the Moon Tribulation will most likely be over.

"How can we crack the source power of earth cultivation? Do we have to understand its fundamental power before we can think of a way?" asked Huan Yin.

Xue Buping responded: "Being able to gain insight is naturally the easiest way to break the enemy." However, if you haven't cultivated and comprehended that kind of source power, how easy is it to understand it? Crush it with absolute force, so that its source power can still be abolished. ”

"Take the current tengu, it's black enough to erase some of it. If you can find something and erase it, then its means will be completely destroyed......"

Xue Buping said a lot, but when Huan Yin heard this, he didn't have the time to listen to it anymore. Because he found that he had been going around in circles with Tengu for so long, Tengu had finally lost his patience completely.

As a result, the tengu stopped chasing. It stopped, but instead of giving up, it opened its mouth like a black hole and aimed it at Huan Yin.

In the mouth of the tengu, the thick darkness is like an abyss, and the bottom is unsearchable. It seems that in ancient times, there were tengu eating the moon, but today the tengu is preparing to concoct it in the same way and swallow Huan Yin with the means he is best at!