With the increase of the cold aura floating around, this tunnel gradually became open, and Mu Chen estimated that he was almost at the end of this tunnel.

However, as the two of them deepened, the cold aura floating around them increased, which also caused Mu Chen and Song Qi to have to 'strengthen' the shield with the holy fire around them.

After Mu Chen and Song Qi's experiments, Mu Chen and Song Qi also discovered that no matter who Mu Chen's 'holy fire' is released for, as long as it is with Mu Chen's consent, this 'holy fire' can be attached to that spell.

Since Mu Chen hadn't learned a new defensive spell for a long time, Mu Chen, who firmly believed that offense was the best defense of this section of truth, had never consolidated the defensive spells he had learned before, so when the two of them continued to go deeper into this tunnel, the shield released by Mu Chen finally had a faint tendency to shatter - in the face of the increasingly strong and powerful cold aura around him, even with the increase of 'holy fire', the shield released by Mu Chen was still unable to resist anymore.

However, it was also due to the previous experiment that Mu Chen and Song Qi also knew that this 'holy fire' would not only only increase the spells released by Mu Chen, but also any spells that the society strengthened with Mu Chen's consent.

Therefore, I don't know when, the shield around Mu Chen and Song Qi also changed to be released by Song Qi, but what hasn't changed is that this shield still has a faint 'holy fire' aura in it.

In fact, Mu Chen and Song Qi still know the reason why the 'holy fire' entrained in the shield around them can resist the cold breath around them, because the 'holy fire' and the cold breath around them belong to two completely different breaths, and the two stand on an opposing position, so this is the one that can repel and cancel each other.

However, since the outer layer of these two people is already protected by a circle of 'holy fire', it stands to reason that Mu Chen and Song Qi's perception of the outside world should actually be weakened by the other breaths around them, but ......

Although the shields around Mu Chen and Song Qi are now carrying 'holy fire', Mu Chen and Song Qi found that their perception of the outside world has not weakened, on the contrary, this 'holy fire' seems to have strengthened Mu Chen and Song Qi's perception of cold breath from a certain angle.

What happened in this ocean blue hole was already surprising and difficult for Mu Chen and Song Qi to accept, but for the strangeness of this 'holy fire', and the shield increased by the 'holy fire' at this time, Mu Chen and Song Qi were even more at a loss.

Although Mu Chen and Song Qi were fully prepared when they went to this Ocean Blue Hole, all kinds of strange phenomena that happened in this Ocean Blue Hole were subverting the common sense of the two again and again, Mu Chen and Song Qi felt that they had come to the Ocean Blue Hole, which was clearly coming to a fantasy world!

......

The surrounding shield was also replaced by the shield released by Song Qi, plus the blessing of Mu Chen's 'holy fire' breath, so for the cold aura floating in this tunnel, the shield also excluded it to the outside, firmly guarding Mu Chen and Song Qi in the shield.

As Mu Chen and Song Qi went deeper, the surrounding tunnels continued to expand, and after continuing to drive deeper for nearly ten minutes, Mu Chen and Song Qi finally walked out of this tunnel.

However, although this tunnel was made, Mu Chen and Song Qi should be excited, but as Mu Chen thought before, since the two of them entered this ocean blue hole, they have fallen into one of the cycles - potholes, tunnels, caves......

No, although Mu Chen and Song Qi have already walked out of this long tunnel, it is not surprising that another cave has appeared in front of them!

Though......

The appearance of this cave is finally different from the previous cave appearance.

But in detail, the essence of these caves has not changed.

I saw that the cave in front of me was still as large as I imagined, and all kinds of stalactites of various lengths and shorts were also growing in various places.

It seems that in this ocean blue hole, all the cave structures are the same, but the size is different.

Of course, the cave in front of Mu Chen and Song Qi now has a different environment except for its size.

Perhaps because of the cold aura that filled the surroundings, although the appearance of this cave was no different from the caves that Mu Chen had entered before, the interior of this cave was full of cold atmosphere.

The ice condensed on the stalactites and the light ice underfoot, this cave is like a replica of other caves, only the environment inside has been replaced by an ice version.

Compared to the cave where the 'Holy Fire' was hidden before, the overall area of the cave where Mu Chen and Song Qi were now was still very large, but it was still not comparable to the 'Holy Fire' cave.

Because the ground was covered with ice and was very smooth, Mu Chen and Song Qi could only walk on it cautiously and tiptoeing.

After simply walking around this cave and observing the appearance of this cave, Mu Chen just felt that this seemed to be very familiar—there were no other exits, stalactites grew everywhere, and all the cold breath around them pointed in one direction - the center of the cave.

And, in this cave, too, a stone pillar protruded.

This......

Isn't it the structure of the cave where Mu Chen and Song Qi discovered the 'Holy Fire' before?

Saying that these caves are actually carved out of a mold, don't believe it, no, how different is all the appearance of this ice and snow cave in front of you from the 'Holy Fire' cave that Mu Chen and Song Qi entered before?

Previously, Mu Chen said that these caves were copied from a template, but in fact, it was just a joke, although these caves are indeed very similar, but they are not as Mu Chen said, they are copied from a template.

However, at the moment, these caves still seem to be angry because of Mu Chen's ridicule, and they are really a cave that looks exactly the same as the cave Mu Chen entered before.

For the raised stone pillar in the center of the cave, Mu Chen and Song Qi naturally remembered it vividly.

Because, in the cave where Mu Chen found the 'Holy Fire', Song Qi used his first offensive spell released by the rainbow array that had been tempered by the Holy Flame, and the target of the attack was a raised stone pillar in the 'Holy Fire' cave.

Maybe it's really in response to that sentence - the two heavens of ice and fire, except for the completely different breaths, everything else should be exactly the same.

"It's really a blue hole in the ocean, and we can always come up with some tricks beyond our imagination......"

Compared to the position of the stone pillar protruding from this cave, Mu Chencai slowly shook his head and sighed.

But this is not a bad thing, since the two classmates are exactly the same, except for the cave at the foot of the cave, which is covered with a little ice, there is no difference in the others.

So, this also means that there must be a treasure hidden in this cave.

And there is no other way out around this cave, and the cold breath floating in the air is also very strong, it seems that the treasure that exudes this breath is hidden in this cave.

I just don't know how much effort it takes to convince this treasure.

Compared to the 'Holy Fire', the cold aura around it alone was enough to make Mu Chen and Song Qi feel troublesome.

If you really find the location of the treasure, you don't know how difficult it will be to take it.

Biche, a treasure that can exude such a powerful aura naturally has spiritual wisdom, and Mu Chen also does not dare to guarantee that if this treasure does not want to reveal his location, he will still be able to find the true location of this treasure.