After sitting down, Lei Xiaotian began to absorb the surging heaven and earth aura, this tower does not know how it was built, anyway, the heaven and earth aura in this tower is more than ten times that of the God's cage, you must know that in this God's cage, the original heaven and earth aura is several times that of other places in the god realm, and the heaven and earth aura in this tower is more than ten times that of the God's forbidden land, so it is conceivable that the density of the heaven and earth aura in this tower is conceivable.

In other words, if you cultivate in this tower for a day, you can absorb ten times the aura of heaven and earth in the cage of God, and the aura of heaven and earth that can be absorbed in a day in the cage of God is several times that of the outside world, that is to say, if the speed of a person's comprehension can keep up, then cultivating in the tower, the speed will be more than ten times that of the outside world, which is a terrible number, and at this time, Lei Xiaotian's comprehension has reached the realm of the upper god level, and now Lei Xiaotian's difference is to absorb the aura of heaven and earth.

In this place where the aura of heaven and earth is incomparably dense, it can be said that Lei Xiaotian's cultivation is simply twice the result with half the effort, under the traction of Lei Xiaotian's breath, the surrounding heaven and earth aura all surged towards Lei Xiaotian at once, and a storm of heaven and earth aura was formed around Lei Xiaotian, this originally transparent heaven and earth aura, because it gathered too much around Lei Xiaotian, so it looked like it was completely wrapped in Lei Xiaotian, and the dense heaven and earth aura actually formed a materialized aura accumulated around Lei Xiaotian, and it was difficult to see Lei Xiaotian's body from the outside world。

With such a dense heaven and earth aura, surrounded by Lei Xiaotian, so Lei Xiaotian absorbs the energy of heaven and earth effortlessly, as soon as he sits down Lei Xiaotian began to operate the divine power, frantically absorbing the aura of heaven and earth, breaking through from the high level of the middle god to the beginning of the upper god, this is directly across a great realm of cultivation, the amount of heaven and earth energy required is very much, if the average person breaks through in the outside world, it will take a long time to gather these energies, and it also needs to be assisted by the spirit gathering array, but for the thunder Xiaotian in the core tower of the God's cage, this is not a problem at all, and the heaven and earth energy in this is under the traction of the breath of the thunder Xiaotian's breakthrough, it is enough for Thunder Xiaotian to break through, so Thunder Xiaotian directly omits the link of gathering energy.

With the passage of time, the speed at which Lei Xiaotian absorbed the energy of heaven and earth gradually slowed down, after the speed at which Lei Xiaotian absorbed the energy of heaven and earth slowed down, Lei Xiaotian's own momentum increased at a rapid rate, an hour passed, and the breath of Lei Xiaotian was still increasing, two hours passed, and the breath of Lei Xiaotian still did not stop increasing, so Lei Xiaotian sat for five or six hours, and at this time, Lei Xiaotian's body no longer absorbed the energy of heaven and earth.

But at this time, the breath of Lei Xiaotian was still slowly increasing, and after about three hours of time, the breath of Lei Xiaotian finally stabilized, and at this time, the energy of heaven and earth gathered around Lei Xiaotian began to slowly dissipate.

At this time, Lei Xiaotian was still in a state of cultivation and sat there without moving, still surging with divine power around his body, and just after all the energy of heaven and earth dissipated, Lei Xiaotian suddenly opened his eyes.

After opening his eyes, Lei Xiaotian's eyes burst out of a breathtaking light, and at this moment, a burst of golden light suddenly came out of the sky, shooting directly down from the sky, completely enveloping Lei Xiaotian, Lei Xiaotian knew that this was the law of heaven and earth, for this situation, Lei Xiaotian was no stranger, because it appeared when Lei Xiaotian broke through to the lower god, and when Lei Xiaotian broke through from the lower god to the middle god, it also appeared, but what Lei Xiaotian didn't expect was that this tower obviously transmitted itself to another space, but it didn't even isolate the exploration of the rules of heaven and earth！

Lei Xiaotian knows that only after the baptism of the rules of heaven and earth, that is, the baptism of this golden light, can he be regarded as a real breakthrough to the upper god, because just now he absorbed the improvement of the breakthrough breath of the energy of heaven and earth, which is only the improvement of his own divine power, only after experiencing the baptism of the rules of heaven and earth, Lei Xiaotian's soul and divine crystal can be improved, and he can be regarded as a real superior god, the last step of this breakthrough, Lei Xiaotian originally thought that he would not be able to complete it until he walked out of the tower, but he did not expect that in this tower, he could accept the baptism of the rules of heaven and earth！

From outside the tower, you can see that at the top of this tower, which is high into the sky, another golden light shoots directly into the tower from the top, but now there is not even a person outside the tower, so no one can see it!

In this golden light, Lei Xiaotian can strongly feel that his soul is sublimated again, and his divine crystal is also demuting, this sublimation and transformation are just a matter of a moment, although Lei Xiaotian himself feels very clearly, and it feels relatively long, in fact, from the outside world, it is just a blink of an eye!

When the golden light dissipated, the aura on Lei Xiaotian's body was no longer a mid-level god, and now Lei Xiaotian was already a true high-level god. After standing up, Lei Xiaotian first moved his hands and feet, and then casually unleashed a few attacks forward, as if he was getting used to his newfound strength.

After doing this, Lei Xiaotian's body moved, held the sword again, and along the way he retreated just now, he rushed towards the desert that had not yet broken through in front of him, the difficulty of the desert in this level was set according to the strength of Lei Xiaotian before he broke through, so in terms of the strength of Lei Xiaotian now, it can be said that there is no difficulty at all, so this time, when Lei Xiaotian approached the boulder that emitted white light, he charged very fast, and the attack from all around did not pose any threat to Lei Xiaotian at all, so it was easy for Lei Xiaotian to break the boulder and get the jade piece。

Next, Lei Xiaotian worked hard and found two jade pieces again, and as Lei Xiaotian expected, Lei Xiaotian only got four jade pieces in this level, and they formed the same jade plate as the first and second levels.

Like the first two levels, after the formation of this jade card, before Lei Xiaotian could react, in a burst of officials, Lei Xiaotian was brought to the door of a large gate by the jade card, and then Lei Xiaotian concocted the same method, and placed the jade card in the gap of the gate, and then, the door also slowly opened, after opening the door, Lei Xiaotian stepped directly into the door, which also indicates that Lei Xiaotian has passed the third level, along the stairs behind the gate, Lei Xiaotian walked up step by step, and the same as the first two times, Lei Xiaotian did not encounter anything other on the stairs, so it was very smooth to the door of the fourth level, Just when Lei Xiaotian walked up the stairs, he unexpectedly saw an old man with white hair, standing at the door of the fourth level and looking at him.