The trench is said to be 20,000 meters deep, but it has not been confirmed. The trench here is more than a dozen kilometers wide, making it the widest and deepest trench in the world. Of course, this is only temporarily found and confirmed, and there are not cases where it has not been confirmed. Even if Swallow Heaven discovered the trench with a formation before, it was already 20,000 meters deep above the formation, and it was unknown how deep it was below the formation.

Swallowing Heaven took Xiao Fei all the way down, and soon reached a depth of 20,000 meters under the sea.

At this depth, there are no more creatures, and the temperature is much higher, and some places are constantly bubbling outward. There are many mineral organisms around the rocks, and they belong to the category of straight bacteria.

I saw Swallowing Heaven open his mouth and spew out a mouthful of dragon breath, exhaling !!! The huge dragon's breath turned into an arrow of water and rushed to the bottom of the sea.

There was a stirring, and the sediment on the bottom of the sea was quickly rolled up, and the whole sea water was instantly turbid. However, the bottom of the sea has also been washed out of the gully hundreds of meters deep, and it is still very deep below.

Swallowing the sky continued, constantly washing with the dragon's breath, and after an hour, the depth of thousands of meters was washed out below, and the temperature here rose by hundreds of degrees, and there were many cracks under the sea that were constantly bubbling outward.

This must be the crater," you wait here. Xiao Fei confessed, and the divine power on his body flashed, and he flew directly into these cracks. At a depth of more than 20,000 meters, the pressure is extremely terrifying.

Even at this time, Xiao Feihe's Dao Realm strength felt a little pressure, and as it continued to drop, the temperature became higher and higher, but it was still within the range of bearing. Xiao Fei waved his big hand, and the Demon Slaying Sword shot out instantly.

There was a loud bang ...... "boom", and a huge opening of 100 meters long was instantly blasted open in the ground. Suddenly, the sea and the rocks rolled. The entire ocean floor began to shake and tremble.

"Puff, puff, ......puff, puff," a stream of sulfur-smelling gas rushed out of the ground. Muddy the sea.

Magma is about to erupt. Xiao Fei immediately quickly retreated a few kilometers before stopping.

"Master, what's wrong?" Swallowing Heaven noticed the movement below, immediately collected the dragon body, and cautiously came to Xiao Fei's side and asked.

"It's okay, I'm just letting the magma erupt early." As soon as his words fell, the earth trembled even more, and the sea churned even more.

"Boom, poof......" There was a slam in the ground. The magma erupted and shot up hundreds of meters before stopping. This eruption was not small, and it also caused a lot of earthquakes and tsunamis, and of course, this is the depths of the Pacific Ocean, so it will not affect the safety of the surrounding continents.

As soon as the red magma erupted and touched the seawater, it was quickly cooled and blackened, but the hot magma inside burst out again, and the cooled magma on the outside fell off and came out again. Alternate this until all is cool.

Take this opportunity. Xiao Fei's divine power flashed, protected his body, and plunged into the magma with a flying sword.

Not to mention, the temperature here is really high, even if he cultivates at this time, he feels uncomfortable.

Just kidding, the further down he goes, the more terrifying it is in terms of pressure and temperature, and he can't hold on for long.

You have to find the Fire Mother Essence Crystal as soon as possible, and after going down a thousand meters, the magma that was originally blocked by the divine power for one meter outside the body has been squeezed to a position of half a meter at this time. It's a pity that Xiao Fei still got nothing. According to his estimates, his current strength can go down another 500 meters at most.

If you can't find it again, you have to go home, go out and rest and look for it again.

Continuing down, under the tremendous pressure and temperature, the surroundings were already red. If you rely on your eyes alone, it is absolutely impossible to find the Fire Mother Essence Crystal.

However, the spirit is also limited here, and can only explore the surrounding thousands of kilometers. This is already very good, when he went down five hundred meters, the divine light has been compressed by the magma to almost stick to his body, and Xiao Fei can already feel the powerful and terrifying temperature and pressure. He hadn't sweated for a long time, and his clothes were all wet.

"Damn, it's still a hundred meters away." Xiao Fei was suddenly a little unwilling, because a hundred meters down, the Divine Soul found a Fire Mother Essence Crystal, and it was not small, the size of a grinding plate. So much, it is enough to arrange a spirit sealing array to envelop Shenhuang Island, and there is even a surplus.

But the problem now is that this is already his limit, and he can't hold up any more divine power.

Fight again, thinking of this, the immortal armor on his body flickered, and the damaged immortal armor had been worn by him, and it was suddenly like a fairy god coming to something, so it was not mighty.

With the immortal armor body, the immortal mangs above instantly pushed these magma out more than a meter away, Xiao Fei was overjoyed, and he didn't dare to delay, because the immortal armor itself was damaged, and now there were cracks, and I was afraid it wouldn't last long.

Aiming at the target, he shot down at full speed, and it took two minutes to reach a short distance of 100 meters. At this time, the magma was almost attached to the immortal armor again.

"Poof!!" A stream of magma was squeezed in from the crack in the immortal armor, "Not good. Frightened, Xiao Fei immediately put the Fire Mother Essence Crystal into his sleeve, turned around and fled up.

"Puff puff puff ......" The crack in the immortal armor is getting bigger and bigger, and it is almost unbearable.

When he rushed out of the underground magma, the immortal armor shattered instantly, and the magma hit his body, Xiao Fei's divine light rose, and instantly pushed the magma away.

"Whew!!" It's finally out, and it's so dangerous just now.

But it's a pity that the immortal armor, if it is not broken, it is not a problem to resist the blow of the peak master of the Merge Dao Realm. Of course, it's just a blow, and it still has to break after a blow. There is no way, the immortal armor is damaged, if it is a complete immortal armor, even if the peak of the Hedao realm is desperate, it is not necessary to destroy it for a point.

Overall, it was indeed not worth exchanging the immortal armor for a Fire Mother Essence Stone, but Xiao Fei did not regret it. If you want to cultivate your own team, you can't do it without the Spirit Sealing Array. So from this point of view, it's great value for money.

Immortal armor is priceless for others, but Xiao Fei still has a chance to get it again, so it doesn't hurt so much.

"Master, are you alright?" Swallow Tian immediately rushed over and asked with concern.

"It's okay, let's go." After Xiao Fei finished speaking, he shot upwards first.

Swallowing Heaven quickly turned into a dragon's body, chased after Xiao Fei and quickly walked out of the trench, not long after they left, the magma erupted from the underground crack was quickly cooled by the seawater and frozen, as if it had never erupted.

"Master, has the Fire Mother Jingjing been found?" On the way, Swallow Tian asked curiously, in fact, it also wanted to know what this Fire Mother Essence Crystal research was, and it was worth the master to take such a big risk to go into the underground magma to find it. (To be continued......)