Outside the Taidemon Thunder Pool, Mu Jiao and the other four stood in the air, their eyes were all looking at the Taidemon Thunder Pool in front of them, and their faces were slightly solemn.

"What now?" asked Long Yu.

"Brother Mu told us to go to other places first, and when he leaves the customs, he will meet us immediately. Mu Jiao said slowly.

"Brother Mu is really powerful, he was able to hold on to the Taidemon Thunder Pool for so long?" Long Zhan said admiringly.

Although their dragon clan is extremely strong, compared to Mu Feng, it is still three points weaker, they entered the Tai Demon Thunder Pool about 1,500 zhang, they could not withstand the violent thunder power in it, and Mu Feng had already arrived at the place of the Tai Demon Thunder Pond 2,000 zhang.

"Let's go, it's not a way to wait here, Brother Mu I'm afraid it will take a long time. Mu Jiao groaned slightly and said.

Long Yu and the other three also nodded, and the four of them no longer hesitated, they swept in a certain direction, in that direction, there was an extremely hidden secret, and this news was learned by Mu Feng from the information in the wood demon seal.

......

"Boom, boom!"

At a depth of two thousand zhang in the Tai Demon Thunder Pool, one after another violent black thunder tore through the space, blasting towards a thin figure sitting cross-legged, each black thunder could seriously injure an ordinary eighth-order five-fold demon beast powerhouse.

However, when these terrifying Taishang Demon Thunders hit that thin figure, they did not inflict heavy damage on it, except for making the latter's body tremble and show a touch of pain on his face.

This figure is naturally Mu Feng who is cultivating in the Taidemon Thunder Pool!

Now it is not a short time since Mu Jiao and others left. Now Mu Feng's breath has reached an astonishing level. If Mu Jiao and the others were there, they would definitely be surprised to find out. The fluctuations emanating from his body have reached the peak of the four-star Martial Venerable, and faintly, there are signs of a breakthrough.

With the help of the Sage's Destiny Pattern and the Demon Spirit, Mu Feng's cultivation has improved speed, which can be described as a thousand miles a day, which is not an exaggeration, coupled with the quenching of the thunder power in the Tai Demon Thunder Pool, Mu Feng's strength is now. And before entering the Taidemon Thunder Pool, there were earth-shaking changes.

"Boom, boom!"

One after another, the Taishang Demon Thunder roared out and slammed into Mu Feng's body, and on the surface of his body, there was a black thunder arc flickering wildly, invading Mu Feng's body pervasively, and an indescribable violent aura and terrible temperature emanated from Mu Feng's body. The space around it became extremely distorted.

Mu Feng's skin became extremely red, and he was covered in clothes. It had long been burned to ashes, and his thin face had become extremely hideous. From that terrible aura fluctuation, you can detect it. Now Mu Feng's body has accumulated what terrifying power. Like a depressed volcano.

And above Mu Feng's head, a purple mini dragon was swallowing whales in the sea. Absorbing the power of thunder in a big way.

This purple mini dragon is the Purple Spirit Thunder Source, after absorbing a large amount of thunder power, Mu Feng can clearly feel that the current Purple Spirit Thunder Source has evolved to a rather terrifying level.

"Boom, boom!"

One after another, the terrifying Taishang Demon Thunder continued to roar and fell heavily on Mu Feng's body, the latter's body trembled violently, but it was constantly frantically absorbing the power of thunder that invaded his body.

It's just that Mu Feng's brows are furrowed, because he found that he has adapted to the Taishang Demon Thunder here, and if he wants to break through with the help of the Taishang Demon Thunder here, he is still a little behind.

However, just when Mu Feng was entangled, the purple spirit thunder source above his head, as if sensing Mu Feng's abnormal appearance, rose against the storm, turned into a hundred zhang in size, and then suddenly opened his mouth, and a huge purple thunderbolt suddenly shot out of his mouth and fell heavily on Mu Feng's body.

"Snort!"

Purple thunder slammed into Mu Feng's body, his body trembled violently, and the purple thunder flashed wildly all over his body, and on the surface of his charred black body, there were blood openings that cracked, and the power of violent thunder poured madly into Mu Feng's body.

Mu Feng's face showed an extremely painful color, but in this painful color, there was a touch of pleasure that was almost perverted.

The purple spirit thunder source opened his mouth, and once again spewed out a purple thunderbolt, which landed on Mu Feng's body.

"Boom!"

The blood on the surface of Mu Feng's body spread rapidly, and the dazzling blood seeped out, turning into a bloody figure in an instant.

However, Mu Feng didn't care at all, and when the handprint changed, he was still frantically absorbing the power of this terrifying thunder, a violent energy fluctuation and terrifying temperature, emanating from Mu Feng's body, as if a volcano was about to erupt.

Time passed, Mu Feng's body, like a volcano about to erupt, was still constantly suppressed, and the aura fluctuations around his body increased dramatically at a speed that was perceptible to the naked eye.

"Boom!"

In the next moment, Mu Feng's eyes suddenly opened, and an indescribably powerful aura fluctuation swept out from his body, directly tearing apart the surrounding space, and blasting away the two Taishang Demon Thunders that shot out, which were enough to bombard ordinary eighth-order five-fold demon beast powerhouses.

Five-star martial arts!

On the surface of Mu Feng's body, the blood quickly coagulated, forming a series of blood shackles, and then fell off at an extremely fast speed, revealing smooth and flexible skin.

Mu Feng stood up, but his thin figure was as tall as a pine, and his strong aura spread out, so that the surrounding Taishang Demon Thunder did not dare to approach, and there was an unusually sharp light flashing in his eyes.

Feeling the surging power in his body, the corners of Mu Feng's mouth set off an arc of joy, and the power in his body that was almost surging out made Mu Feng feel an unprecedented self-confidence.

If he fights with Arakun now, Mu Feng believes that even if it is ten punches, he will be able to follow.

"Thank you, Purple Spirit Thunder Source!"

Mu Feng raised his head and said to the Purple Spirit Thunder Source who had returned into a purple mini dragon above, if it weren't for the Purple Spirit Thunder Source, I am afraid that his breakthrough would not be so smooth.

However, to De Mufeng's surprise, after absorbing the thunder power of the Taishang Demon Thunder, the Purple Spirit Thunder Source seemed to evolve very quickly, and its spiritual intelligence had also improved a lot, and he was able to feel his own situation and thoughts.

"Roar!"

At this time, the purple mini dragon suddenly roared in a low voice behind Mu Feng.

Mu Feng turned to look, and the hairs on his body suddenly stood upside down, because he saw that in the depths of the Tai Demon Thunder Pool, a huge shadow gradually emerged and appeared in front of him.

It was a huge thunder black dragon, its body was glowing with black thunder light, its body was extremely large, and it had a pair of dragon pupils, glowing with a cold luster.

"Too demon thunder spirit!" Mu Feng said in a lost voice. (To be continued......)