But why are there so many craters in the blue hole of the ocean?

This also made Mu Chen suspicious, because the two walked all the way down, and there were too many potholes they encountered.

Whether the two of them first came to the ice field, or fell from the ice field to the cave, or even the end of the tunnel in front of them, they all have an inseparable fate with the pothole.

This is really a very 'pit'!

However, after such a long time of exploring various ruins or places of chance, Mu Chen and Song Qi have already figured out such a rule - no matter whether a certain cave or cave, or a tunnel is very weird, as long as these areas go deeper, the greater the possibility of the treasure they contain, and it can be regarded as a real treasure hidden in the deepest part of the sentence.

As Mu Chen and Song Qi expected, it seems that all the potholes are such a rule, just like writing a novel, the pit in front of Mu Chen and Song Qi at the end of this tunnel is also dark at a glance, even if it is illuminated by the detection light of the 'Thor' mecha equipped by Mu Chen, it is impossible to see the bottom.

But Mu Chen and Song Qi were already familiar with the same appearance of these pits, only to see Mu Chen and Song Qi looking at each other and smiling, they had already understood each other's intentions, and jumped off the hole one after another.

But fortunately, the surrounding area of this cave wall is not smooth, and Mu Chen and Song Qi are also able to jump repeatedly on the wall of this cave to slow down their downward fall.

Otherwise, if the walls of this cave were very smooth, at the bottom of this mountain range where they could not fly, Mu Chen and Song Qi really didn't know how to go down.

Due to the need to constantly jump horizontally around the wall of this pit repeatedly, the light on the detection lamp installed on Mu Chen's 'Thor' mecha was also deliberately weakened a lot by Mu Chen.

Otherwise, if the light is too strong, it will also be very dazzling, affecting the process of Mu Chen and Song Qi's whereabouts.

It's just that the shortcomings of this are also obvious - that is, they can't fully use the light emitted by the 'Thunder' God Mecha to observe the surroundings of this pit, and if there is any accident, the reaction time left for Mu Chen and Song Qi will be greatly shortened.

But Mu Chen and Song Qi are now both immortal cultivators in the Mahayana period, and the two of them are still confident, as long as they are not too powerful and the beast attacks, they can still react.

If it was really too powerful a strange beast to raid the two of them, it could only be regarded as the luck of the two of them, but it did not mean that the two of them would be caught, at most they would only be slightly injured due to their untimely reaction.

Because after the tempering of the 'Holy Fire', Song Qi now has enough confidence in his own strength, no matter what kind of demons and monsters, he can only flee in embarrassment when faced with the cover of offensive spells that will not be suppressed at all now.

Stopping at Muchen, although many times the confidence is not too much, but whenever he is really in danger, it is always Muchen who is desperate.

Mu Chen has never questioned his own skills, all he lacks is enough confidence.

There were moments of confidence though—like the one that was so confident that you could fly in the mountains, and then rolled halfway up the mountain to the bottom of the mountain.

This can be regarded as a haze that Mu Chen wants to forget very much now.

The two of them slowly descended in this way, and because their vision was greatly restricted, they also strengthened their perception of the outside world.

Although the two of them were very much looking forward to being able to perceive a trace of the aura belonging to other substances in the spiritual power of the surrounding heaven and earth, because this would prove that there was indeed a treasure hidden under this pit, but when the two of them really felt another breath entrapped in the spiritual power of this heaven and earth, they couldn't help but be shocked.

Because, the breath that the two of them perceive now is clearly the cold breath floating in the air around them when they were in the ice field.

Even the feeling it brought to himself was exactly the same, and the bitter coldness that went straight to the heart almost didn't let Mu Chen and Song Qi fall directly from the cave wall.

But the current crater should be under the mountain range, and it stands to reason that it is already far away from the ice field that the two of them entered at the beginning, but why do they feel that cold breath here?

If it weren't for the fact that the two of them had already walked out of the mountain range, and the outer edge of the mountain range was actually another ice field?

Sensing the cold aura entrapped in the spiritual power of heaven and earth floating around them at this time, Mu Chen and Song Qi were not only full of doubts, they didn't know what was going on at all.

However, this did not stop Song Qi and Mu Chen's footsteps, on the contrary, it was precisely because of this strange cold breath that it attracted Mu Chen and Song Qi's determination to explore this pit even more.

After all, the power of human curiosity is enormous.

Moreover, Mu Chen had only changed the 'Holy Fire' before, and now he had found an ice attribute treasure, the two were relatively fatal.

It is said that the two heavens of ice and fire, now Mu Chen has not only experienced it, but if he can truly cultivate a spell like the two heavens of ice and fire, it will also be a great creation.

This pit is also a little shallower than the other pits that Mu Chen has encountered before, after all, this mountain range is already a very deep scale, if the pit where Mu Chen is falling now is still very deep, maybe Mu Chen and Song Qi will have to float to the magma layer of the earth's crust.

A thousand-year-old magma layer can completely burn an unsuspecting Mahayana powerhouse to ashes.

It was based on the slow descent speed of Mu Chen and Song Qi, but the two of them only descended for more than ten minutes before they came to the bottom of this pit.

However, the imaginary cave does not appear, and at the bottom of this crater, there is a tunnel connecting to another opposite direction.

That is, the direction of the tunnel above the pothole.

Isn't this tunnel going to ask Mu Chen and Song Qi to return to that ice field?

This is not necessarily impossible, after all, the cold breath floating around here is indeed very similar to the breath of the ice field.

It's just that they have to continue walking along a tunnel, and Mu Chen and Song Qi are also reluctant in their hearts.

Except for the ice field, Mu Chen and Song Qi basically repeated between the three of the pits, caves, and tunnels.

This ocean difficulty is really not interesting.

I've heard of this ocean blue hole before, in fact, there should be a secret base built by the former humans, but Mu Chen and Song Qi have been exploring for so long now, and they haven't seen anything about the secret base of the former humans, and even the breath that belongs to the former humans that Mu Chen called 'mechanical breath' has not been perceived.

At the moment, I don't know how much the altitude here is negative, and the humid air is mixed with a faint smell of rotten meat, mixed with the cold and bitter breath around it, wafting towards Mu Chen and Song Qi, but it is also, it makes Mu Chen and Song Qi unbearable for a while-they almost vomit it out on the spot.

But at the moment, there is no other way, because there is only this tunnel here, and Mu Chen and Song Qi can only obediently walk along this tunnel, after all, even if Song Qi and Mu Chen are capable, they will not be able to open up a tunnel again.

If they had the ability to open up a tunnel by themselves, then Mu Chen and Song Qi would not have to go along these tunnels at all.

The cold breath contained in the spiritual power of the surrounding heaven and earth was also very weak at this time, Mu Chen and Song Qi had been walking for a long time, but this spiritual power had only strengthened slightly, and it could be estimated that this tunnel must be far longer than the tunnel above the pothole.

However, this should also be inevitable, after all, the end of this tunnel should be the center of the ice field.

It is only in the center of the ice field that the treasure can spread the cold breath to all parts of the ice field.