In the blink of an eye, it was another ten days.

In the passage of the underworld.

Around Chu Jingtian's body, those water attribute elements finally disappeared.

With a hint of a smile, he immediately got up and put away the water spirit.

After these ten days of cultivation, surrounded by the water elemental attribute, his strength had been improved to the late stage of the first level of the Martial Saint, and he had risen to a small level.

And the level of the water spirit has also been raised to the advanced level of the heavenly rank, and now it is the same size as the fire spirit, and its power has also been greatly improved.

This made Dechu completely sure that the levels in these passages should be prepared for him, so he felt a lot more settled.

Immediately, he took a step forward and continued to move forward, and he had to improve his strength as soon as possible.

Half an hour later, Chu Jingtian encountered the third gate after entering the passage.

Opening the door, what rushed out this time was a sky full of green vines, countless green vines, which instantly enveloped Chu Jingtian in it, forming a huge vine ball.

And in the center of the vine ball, Chu Jingtian sat cross-legged and had already released wood spirits, and these vines were all made of wood attribute elements.

Another ten days.

Chu Jingtian's strength has been improved to the peak of the first level of the Martial Saint, and he can break through the second level of the Martial Saint at any time.

And the wood spirit has also been promoted to the advanced level of the heavenly rank, and its power has become even more powerful.

Getting up and walking, Chu Jingtian continued to move forward.

......

......

In the midst of a mountain range, in a cave at the foot of a mountain peak.

"Ancestor, this should be the passage to the underground!" the fox said excitedly, looking at the portal that opened at the end of the cave.

They searched the mountain range for twenty days, and finally found a mechanism that opened the portal.

"Yes. The Demon Ancestor nodded excitedly, "I can feel that with the opening of this portal, my sense of that thing is becoming clearer and clearer." ”

Hearing this, the fox and the giant elephant both showed a hint of a smile, and their hard work was not in vain.

"Go, come in with me. With a wave of his hand, the Demon Ancestor led the two into the passage behind the portal.

The passage is ten meters wide and ten meters high, and there are luminous stones every ten meters, making the entire passage extremely bright.

However, as soon as the Demon Ancestor stepped into the passage, his body slammed and stopped.

"Ancestor, what's wrong?" the fox asked.

"It's nothing, there are runes engraved on the four walls around this passage, and there are likely to be mechanisms, so be careful. Demon Ancestor said.

"Old Ancestor, you are a half-ancestor, both of us are martial saints, how can there be any mechanism in this world that can hurt us. Behind him, the giant elephant said angrily.

The fox nodded in agreement.

"Stupid. The Demon Ancestor shouted, "Have you forgotten the function of that thing?" Do you think the person who can put that thing here, can the mechanism he made hurt you?"

Hearing this, the fox and the giant elephant all looked cautious.

That thing is a treasure that can help the ancestor step into the realm of the Martial Ancestor, so the person who puts down that thing is at least the Martial Ancestor, and there is no doubt that a mechanism set up by the Martial Ancestor can hurt them.

"Understood?" Seeing the expressions of the two of them, the Demon Ancestor said lightly: "Here, I have to be careful, let alone you, be vigilant!"

"Yes. The fox and the giant elephant answered.

Immediately, the three of them walked cautiously forward.

As soon as they took two steps, the Demon Ancestor stopped again, and on the ground in front of them, a line of handwriting suddenly appeared: It's too late to leave now, otherwise, you will bear the consequences!

This line of words appeared suddenly, as if the three Demon Ancestors had touched a certain mechanism, so before, they didn't see it at all.

Seeing that line of words, the expression of the Demon Ancestor changed slightly.

That line of ordinary handwriting, looking at his eyes, seemed to contain some kind of strange coercion, which made his heart tremble.

He knew that being able to do this and prove that the strength of the person who left the handwriting was far above him, which made him hesitate a little and didn't know whether to move on.

On the contrary, it was the fox and the giant elephant, looking at the Demon Ancestor with some doubts, the two of them couldn't see the mystery in the handwriting at all, so they didn't understand why the Ancestor was reluctant to move forward at all, but both of them wisely kept silent and didn't say anything.

After a while, the Demon Ancestor came back to his senses, a flash of resoluteness flashed in his eyes, and he continued to move forward.

At the end of this passage was the thing that allowed him to step into the Martial Ancestor, and in order to take that step completely, he would never give up.

The fox and the giant elephant hurriedly followed.

"Boom!"

Just as the footsteps of the Demon Ancestor had just stepped past those handwritings, behind them, a sound came out, and the portal they had entered the passage had been closed.

The figure of the Demon Ancestor paused again, turned to look at the closed stone door, and turned his hand to attack out.

"Boom!"

An arrow-shaped energy slammed into the stone gate, but after the runes on the stone gate lit up, the energy slowly dissipated, failing to cause any damage to the stone gate.

The fox and the giant elephant were full of shock.

The strength just now, although it was just a casual blow from the ancestor, but what kind of person is the ancestor, it is a half-ancestor level, and his casual blow is enough to kill a strong man at the martial god level in seconds.

But such a powerful blow failed to bring any damage to the stone gate, to what extent did the stone gate's defense reach?

At this moment, they completely believed that this passage was not so simple.

Moreover, the portal closed, and they finally realized that they had no way back but to move on.

The Demon Ancestor glanced at the runes on the stone door, and a heavy look flashed in his eyes without a trace, and then turned around and continued to move forward.

The fox and the giant elephant hurriedly followed, following closely by the ancestor, once something happened the ancestor could still protect them, and now the two of them were full of awe of this passage.

"Boom!"

But they had barely taken two steps when a violent roar rang out in the passage.

After a few moments, the three of them saw the source of the sound, and in the passage ahead, a round rolling stone that filled the entire passage was tumbling towards them, and the speed was terrifying.

If it was an ordinary rolling stone, the three of them didn't pay attention to it at all, but after the scene where the demon ancestor attacked the stone gate just now, the three of them didn't dare to despise this rolling stone at all, because they clearly saw that the rolling stone was actually engraved with runes.

"Stand back. ”

The Demon Ancestor waved at the giant elephant and the fox, and then stood alone, facing the huge rolling stone.

With a wave of his hand, a blade-shaped aura flew out.

"Boom!"

In the sound of gold and iron, the knife-shaped energy instantly shattered and exploded, but the runes lit up on the huge rolling stone, unscathed, and the speed of the rolling stone did not change at all.

The Demon Ancestor's expression sank slightly, he knew that even if he wanted to deal with this rolling stone, he would have to use all his strength.

With a flip of his hands, in the void, a spatial power was held in his hand, and then as if holding a sword, he slashed out......

......

......

Walked along the passage for half an hour.

As Chu expected, he encountered another gate.

Punching out the runes, the door opened, and this time there were patches of golden blade-shaped energy.

Chu Jingtian knew that this was a metallic element, and when he sat cross-legged, he released the golden spirit.

Ten days.

Chu Jingtian's strength was raised to the early stage of the second level of the Martial Saint, and the level of Jin Ling was raised to the advanced level of the Heavenly Rank.

Keep moving.

Then, Chu Jingtian encountered the attack of earth elemental energy, and it took ten days to refine all of them.

Then there is the wind element energy, another ten days, all refined.

At this point, it has been a full seventy days since Chu Jingtian entered this underground world.

His strength has been improved to the late stage of the second level of the Martial Saint, and in addition to the Thunder Spirit, the remaining six elemental spirits of his have all been promoted to the advanced level of the Heavenly Rank, and their power has been greatly improved.

The ability to improve so quickly is naturally due to these levels in the passage.

Therefore, after refining the wind spirit, Chu Jingtian immediately got up and prepared to move forward, if his expectations were right, in the gate in front of him, it should be the thunder element.

However, at the same time as he took a step.

"Boom!"

A violent roar suddenly came into his ears.

The voice seemed to be some distance away from him, as if it had taken a long time to reach his ears, but he was sure that it was from the underworld.

"There are others who have gone into the underworld. This was Chu Jingtian's first thought, followed by doubts, "Who could it be?"

This underground world is the place where the seventh layer of the Heavenly Envy Tower teleported him from, and who else will know about the existence of this underground world?

In Chu Jingtian's heart, thoughts flew around for a while, but he couldn't find the answer.

He wasn't worried that the intruders would enter the passage he was in, the gate at the entrance of the palace was enough to block many people.

However, the sound indicated that it was likely that someone was going to compete with him for the treasure here, so he had to speed up.

Immediately, Chu took a step-on-de-sack step and continued to walk towards the depths of the passage.

Moments later, he came across the seventh gate that had entered the passage.

The runes were played, the door opened, and a light purple thunder and lightning energy rushed out in an instant.

Chu Jingtian had already prepared, and immediately released the thunder spirit, forming a protective layer around his body, and then sat cross-legged, ready to cultivate.

But then, his brow furrowed.

He found that despite the protection of the thunder spirit, there would still be a lot of lightning energy drilling through the protective shield and falling on his body, and his body was a little numb from the electricity.

But immediately after, he showed a hint of a smile, because he found that these thunder and lightning energies were actually helping him refine his body......