Kui Mo was not carried by the clouds and mist at this time, and had already fallen into the water of the thunder pool, struggling to get rid of the tearing of the whirlpool suction.

In the gap where he was desperately treading the waves, he also looked into the depths of the whirlpool, only to see that the originally dark and deep lake suddenly seemed to be boiling, and the huge whirlpool seemed to lose control and began to turn into a turbulent current.

A flat, massive head suddenly poked out of the water, and a row of lantern-like eyes was full of horror. The topless Niu Dingtian dwelled on it, pursing his lips, revealing a resolute look. A pair of hands held the Kunwu knife rigidly, as if it was on the back of the Purple Electric Emperor Ray.

Kui Mo's cold face was also full of joy, and at the same time, he was full of surprise, he couldn't imagine that Niu Dingtian could really carry out the plan and force the Purple Electric Emperor Ray of the Taiyi Realm to this step in the waters of the Thunder Pool.

But he didn't know how many risks Niu Dingtian had taken and how many calculations he had set up in order to achieve this result. Fortunately, the Purple Electric Emperor Ray was just a brute beast and wanted to eat him directly with its mouth. Otherwise, it would just control its distance and swim in the water, not to get close to Niu Dingtian, who would not be able to catch up with it under any circumstances, let alone insert the Kunwu knife into the top of its head. At the same time as the Purple Electric Emperor Ray was anxious in his heart, he happened to be seized by Niu Dingtian, and the Flame Blade had no hilt!

The head is the fatality of almost all humans and monsters, except for a few special existences, a wound that pierces the top of the head directly like this is fatal.

The Purple Electric Emperor Ray was in this category, and the pain in its head made it swim desperately, like crazy. After a few ups and downs, the Purple Electric Emperor Ray completely fell into severe pain and frenzy, and swam forward without knowing the direction.

"Brother, be careful!" Kui Mo floated and fell in the waves, making his Kui Niu clan's unique thunderous roar like a bell. It's just that between the frantic waves, it still seems a little blurry.

He didn't know that Niu Dingtian didn't hear it, so he could only follow behind by stepping on the waves, watching a man and a beast rise and sink among the waves. The flaming rays of the Kungo Knife were still dazzling, and even though it was only a small point, it was enough to guide him in his direction.

Niu Dingtian seemed to hear Kui Mo's voice in a trance, but now he had no time to take care of it, and the purple thunder on the Purple Electric Emperor Ray kept pouring from the Kunwu knife. He could barely open his eyes and the piercing pain in his body was in the face of the rushing waves like sharp arrows.

It's just that Niu Dingtian didn't dare to let go, and only on the back of the purple electric emperor ray could he maintain the corresponding safety.

The Purple Electric Emperor Ray was traumatized and in pain, and was in fear and madness at first. After such a long time, it gradually became calm, and when it saw a rocky mountain not far ahead, it slammed into the cliff next to it, trying to crush the cow top of its head into powder.

"Bang!"

The Purple Electric Emperor Ray was on top of the cliff, and the entire stone mountain was instantly smashed into pieces, and the mountain wall swooped down, Niu Dingtian didn't have time to react at all, but he still refused to let go.

I only heard a loud "bang", and the rocks shattered. Kui Mo was also taken aback, if Niu Dingtian was pushed on the cliff, it would definitely be a pile of rotten meat at this time. Before he could shout, he saw a red light in the water, and under the illumination of the light, Niu Dingtian's body was also red but even more dazzling.

Although Niu Dingtian narrowly avoided the impact, the power of the backward fall also had drawbacks, but he pulled out the thorn in the eye of the purple electric emperor ray. Without the Kunwu Knife as a handle, he couldn't stand on the back of the Purple Electric Emperor Ray at all, and the situation became even more dangerous.

The Purple Electric Emperor Ray probably also knocked its head unconscious, and there was no movement for two consecutive breaths. Niu Dingtian didn't dare to hesitate, and thrust the Kunwu knife into the top of its head, inserting it twice in succession, but only made a sound of gold and iron, and this guy's skull was unexpectedly hard.

The Kunwu knife failed to insert it, but it woke up the dizzy purple lightning emperor ray, and when it saw that it failed to kill Niu Dingtian once, it was looking for an opportunity, and while swimming forward wildly, it touched its head towards the mountain wall on the other side.

After hitting it again and again, Niu Dingtian slipped off its back little by little, and it was in danger after a few blows.

Kui Mo, who had just caught up from behind, also felt thrilled, but he didn't know what to do, but according to Niu Dingtian's situation, it definitely wouldn't last long.

Niu Dingtian gritted his teeth and slowly adjusted his position, and he really found an opportunity, with the shaking of the purple electric emperor ray, he also swung with it, and his left hand accurately cut into the opening of the Kunwu knife before.

Being scratched by Niu Dingtian like this, the blood flowed faster, and the Purple Electric Emperor Ray was even more painful, swimming wildly again.

I don't know how long it took, but there was a dark blue in the sky, it turned out that the sky had gradually cleared up, and there seemed to be no thunder power in the water. They had already left the realm of Lei Chi and followed the river to a completely new realm, which turned out to be Qingping Lake where the rhinoceros clan was.

Qingping Lake is endless, calm and calm, but with the arrival of the purple electric emperor ray, it seems that all the peace will be broken.

Niu Dingtian supported his body with one hand, and his free right hand held the Kunwu knife tightly, and frantically slashed at the head of the Purple Electric Emperor Ray, no matter whether it had any effect or not, he never gave up. He didn't know how many knives it was, but he tried to slash Kungo in the same position every time, and he knew that this was the only way to have a better chance of splitting its hard skull.

A huge wave came, and Niu Dingtian was pressed down by the monstrous wave, and poured a mouthful of cold lake water, and his hand almost slipped off.

He was so exhausted that the last vestige of strength in his body had been exhausted after a whole night of fighting, and it was entirely because of his tenacious willpower that he was able to hold on to this moment.

"Come again!" Niu Dingtian's somewhat pale lips shouted, Kui Mo didn't know where he was thrown by the Purple Electric Emperor Ray, he could only encourage himself.

Niu Dingtian bit his lip, and the long Kunwu knife slashed steadily at the original place, this is the first knife, he doesn't know. But with this knife, all Niu Dingtian's previous persistence was not in vain.

With a click, the skull of the Purple Electric Emperor Ray shattered, and a long knife mark slashed into its flesh, and the bright red blood "gurgled" out, dyeing the clear lake red.

The body of the Purple Electric Emperor Ray suddenly froze and flew out of the water along the water's potential. The dark red eyes showed the color of fierce struggle, as if they were making a final defiance.

Niu Dingtian let go of his left hand, and clenched the Kunwu knife with both hands, and the last bit of power poured in frantically, but it made the red sword of the Kunwu knife have a touch of golden halo. This seems to be a kind of comprehension, an understanding of the indestructibility of the way of the sword, as if touching the power of some kind of law.

When this fiery red light was brightened to the extreme, it quickly fell down like a rainbow light, although it was only a short distance, it was like a popular gesture to cut through the sky, and from the original wound, it deeply pierced the head of the purple electric emperor ray.

"Die!" Niu Dingtian roared coldly like a god descending from the earth. The power of thunder, the power of the water spirit, or the fierce flames, the indestructible pure gold, should be used by me at this moment to kill the enemy!