Xiao Yu took a light breath and adjusted his state to the peak, only then did he rise and float down to the depths of the red light. When he was in Baihong Valley, Xiao Yu also went deep into the earth, but it was only two or three thousand zhang at that time, but now it is tens of thousands of zhang away, and even if he can reach the end, it may not be the place he is really looking for.

This time, Xiao Yu is no longer the power of transfiguration, but the source qi of his own urging, firstly, because this can better deal with possible dangers at any time, and secondly, because he perceives it with the Heavenly Book of Phaselessness, but finds that the rock wall does not know what substance it is, and he has no way to transmotivate.

It was the first time that such a situation had appeared since Xiao Yu had cultivated the Phaseless Heavenly Book, but he didn't feel much fear, because the deeper he went, the more familiar he felt.

This feeling is not an illusion, but a real existence, even so, Xiao Yu did not dare to take it lightly, and always maintained the absolute concentration of his mind, and went deep into it in one breath.

This distance is not his limit, but in order to seek safety, Xiao Yu is not very eager, but while retaining seventy percent of his strength, he uses thirty percent of his strength to maintain his downward trend.

However, to Xiao Yu's surprise, this distance of 10,000 zhang passed very smoothly, and even almost monotonous, which was completely different from what he had estimated before. From a common sense point of view, this was originally a fortunate thing, but in the 10,000 zhang area under the earth, there was no abnormal movement, not even a small creature, which seemed very unusual.

You must know that the creatures below the earth are not less than those above, just like the White Rainbow Valley, there are often many strange beasts hiding in the depths of the earth, and he got the dragon ball by chance. But so far, everything has gone smoothly and terrifyingly, since he went deep into the earth, although what he has seen has exceeded his expectations, but the real danger is almost almost nothing, everything goes against common sense, it is almost like a demon, Xiao Yu has to think carefully about one or two.

Whether this is a blessing or a misfortune for him is still unknown, but it is still a matter of good fortune to be able to preserve enough strength in this respect.

Xiao Yu's mind gradually settled, and he concentrated on pranayama for a moment before going down again, and as the distance continued to deepen, the familiar feeling before became deeper and deeper, and in the end, even Xiao Yu himself began to doubt that he actually had a feeling of returning to his home.

This feeling is not illusory, but it is precisely because it is too real, so Xiao Yu doubts himself, he first came to the ancient demon realm, everything here is unfamiliar to him, and this situation should definitely not occur, so the more real it seems, the more he is vigilant.

Compared with the previous 10,000 zhang, there were some subtle changes, and these changes were not very obvious, or they were generated gradually, rather than suddenly, so Xiao Yu didn't have any other feelings except for feeling a little more laborious.

These expended powers were nothing in terms of the distance he had penetrated so far, and what really unsettled Xiao Yu was that so far, he still hadn't sensed the existence of anything else, as if this boundless space existed independently in another world.

This feeling is very strange, although Xiao Yu wants to think about the problem simply, but after all, it is difficult to deceive himself, so he can only slow down slightly and strengthen the perception of mental power.

After going deep for nearly 20,000 zhang, Xiao Yu's perception became clearer, this place did not look like a divine abyss, or a simple divine abyss, but like an incomparably huge hollow cylinder.

However, in the depths of tens of thousands of feet of the earth, why is there such a large column, and whether this cylinder is naturally generated or human-made.

There were too many doubts lingering in his chest, even if he was as smart as Xiao Yu, his heart was at a loss, and every time he got some information that he thought was true, this information was quickly overturned, and this feeling made the situation in front of him even more confusing.

It was precisely because of the fog that Xiao Yu couldn't believe anything now, the only thing that was certain was that his determination did not weaken because of this, but became deeper and deeper.

Xiao Yu exhaled slowly, trying to empty himself as much as possible while maintaining his mental concentration, so as not to be filled with too many thoughts and affect his mentality.

In a cautious situation, Xiao Yu came to the node of 20,000 zhang, and at the moment of crossing the distance of 20,000 zhang, Xiao Yu's heart suddenly moved, and the blood circulating in his body seemed to be awakened by some kind of force, and suddenly "moved".

This "movement" does not refer to the flow of blood, but to mean that his qi and blood were originally in a calm state, but suddenly became restless.

Xiao Yu was always on guard against all possible situations, so in the face of this sudden change, he was not very surprised, but kept calm to perceive the origin of this change.

Xiao Yu first ruled out the geographical reason, although he was more than 20,000 zhang deep underground at the moment, it was not enough to make such a big movement in his qi and blood, not to mention that even if there was any movement, it should appear gradually, and it could not happen suddenly.

The second possibility is to be induced by the energy released from the depths of the earth, which may be active or passive, triggered by some kind of opportunity.

The third possibility is that there was a mysterious formation set up here, and when his distance touched a certain critical point, the formation would automatically open to warn or suppress him, and the "movement" of qi and blood was to respond to this warning and suppression.

The situation is unpredictable, and naturally there are many other possibilities, but in a hurry, Xiao Yu can only think of these, while ruling out the first one, he also has doubts about the third, mainly because in his heart, he has long believed that the reason why he came here is because of some kind of calling from the depths of the earth.

Since it was a summoning, even if there were formations all over the place, it shouldn't just be opened, at least to a large extent, it wouldn't be bent on stopping him.

Of course, this is only out of some strong psychological suggestion, and there is no basis, it can only be said that under the current encounter, this is Xiao Yu's judgment based on his own perception.

In this way, only the second type remains, to be precise, the initiative in the second, in other words, a temptation of him.

Xiao Yu subconsciously identified this thought, but he also knew very well that it was just some kind of conjecture on his part, and there was no way to know what the truth was, and it might be completely different from what he expected.

But no matter what, what he has to think about now is how to correctly face this kind of restlessness of qi and blood-