The Earth Yin Tree Infant then followed, the crack on the black door quickly closed, when the Barbarian Ancient Beast arrived, Lin Feng's escape disappeared into that crack, the Barbarian Ancient Beast sent a full blow to the Black Gate, Lin Feng had already felt the terrifying huge pressure, but in the next moment, he had already penetrated to the other side of the Black Gate, and the spiritual pressure behind him suddenly disappeared, and not even a muffled sound came.

When the barbarian ancient beast was in a hurry in front of the black gate, Lin Feng, who had passed through the black gate, fell into another predicament, at this time, he seemed to have flown into a vast void, there was no object around, not even a faint light did not exist, only a trace of yin qi rushed to his face, and he continued to consume mana to resist the invasion of yin qi.

The Earth Yin Tree Infant had a keen perception of Yin Qi, but the information obtained from it made Lin Feng suddenly frightened, and the Earth Yin Tree Infant told Lin Feng very clearly that this place belonged to the Underworld region, and it was the place where all living beings would be extinct!

The endless underworld was full of Yin and Netherworld Qi, and Lin Feng's spiritual power would always run out one day, just when he was afraid, the Earth Yin Tree Infant didn't know what he had discovered, guiding Lin Feng to fall rapidly somewhere.

The Escape Technique could no longer be used here, but the Earth Yin Tree Infant was like a fish in water, and Lin Feng was carried by it and flew over a long distance, and after several hours, he finally landed at the end of a void, which may be the first ground he came to the underworld.

The divine sense can still be used, but the scenery seen is all a dark green color, and the earth shade tree infant told Lin Feng that this is a floating valley, in the shallow position of the underworld, and there is still a long, long way to go from the deeper underworld space.

The floating valley is suspended in the void, and in the vast upper space, there are such floating valleys everywhere, and in the floating valley, there must be a kind of dark cloud that can make the floating valley float in the yin and underworld breath all the time.

The Earth Yin Tree Infant led Lin Feng to the bottom of the valley, Lin Feng's divine sense quickly dispersed in the valley, and the next scene he saw made him instantly shocked all over his body!

In the entire floating valley, a thick layer of skeletons has been piled up, so that all the space in the inner layer of the floating valley has been piled up, becoming a high and uplifted mountain bag!

All the skeletons had been eroded by the Yin and Netherworld Qi, but Lin Feng could still see the shadows of the ancient beasts through the shape of the skeleton!

Each of these powerful ancient beasts has the amazing power to overturn mountains and seas, and the awe-inspiring domineering aura they exuded before they die is still vividly remembered today!

And such a huge amount of ancient alien beasts fell here, which made Lin Feng couldn't help but feel a little surprised, he walked along the valley floor to this pile of giant skeletons, and after standing still for a long meal, he stretched out his palm and struck out a dragon cloud battle qi!

The fierce dragon-shaped aura illuminated the void, and the pile of skeletons that had been piled up into a huge mountain was instantly shattered by the huge spiritual power, and Lin Feng saw a hole several feet wide through the bone powder flying in the sky!

In the entrance of the cave, an extremely ancient hall appeared in front of him, and the bones of the alien beasts gathered at the entrance of the cave may also want to enter the main hall when they survive, but unfortunately the strength of the magic circle is far from being able to crack it, so they all died in this floating valley.

Inside the main hall, there is a terrifyingly huge Ancient Circle, although after tens of thousands of years, the defensive shield of the Ancient Circle still exists, and the Yin Qi continues to erode it, but it still has not been destroyed.

Lin Feng pushed with mana on the defensive shield, and the already weakened magic circle shield swayed slightly, cracking a gap in the middle of Lin Feng's mana, Lin Feng stepped on his feet and flashed in, and the magic circle shield once again exuded ripples and bridged as before.

In the main hall, there is actually a pure aura! And the source of this aura is transmitted from the dome at the top of the main hall, and a spiritual vein that spirals into a circle hangs above the void at the top of the main hall like a heavenly river!

Lin Feng used his escape technique to fly directly to the roof, the huge disc-shaped roof was actually the transformation of a dragon's head! And on the surface of this dragon's head, there were a large number of array stones, and among the tens of thousands of array stones, there were dense beast clan inscriptions!

Lin Feng wandered between Jingwen for a long time, and finally came to the center of the roof, aimed at the two dragon eyes that turned into array stones, and played several magic tricks one after another, and then suddenly heard a loud "click", and the dragon's mouth on the roof suddenly cracked!

Lin Feng flew out of the gap, and before he could stabilize his body, there was a loud bang behind him again, and the dragon's mouth on the roof closed again, and there was no trace at all in the tight seams.

At this time, Lin Feng finally returned to the environment of the human world, surrounded by abundant aura, and the hall under his feet was like a tomb, and the dome of the hall was exactly the head of the tomb!

Pressing on top of the tomb was a huge spiritual vein that circled into a ring, Lin Feng was standing in front of this spiritual vein at this time, and the scene he saw in front of him made him unable to recover from the shock for a long time.

This ring-shaped spirit vein is simply a huge dragon bone! And its dragon head is the dome-shaped tomb!

On the side of the spiritual vein, there is a three-foot-high stone stele, which is precisely the spiritual eye of the spiritual vein, and there are two big characters engraved on it: Dragon Mound!

This dragon mound is actually a node connecting the human world and the underworld, and the dragon head is a prohibition for sealing the exit, and the huge spiritual veins exist at least tens of thousands of zhang below the leylines!

Lin Feng's shock was beyond measure, the bones of the dragon clan had never been seen before in the cultivation realm, its body could actually be integrated with a spiritual vein, and it continued to draw spiritual power from the spiritual veins to maintain the continuous operation of the underground dragon mound's magic circle for tens of thousands of years!

Lin Feng didn't know what happened here tens of thousands of years ago, but this giant dragon must not belong to the human realm, and it did its best to suppress the magic circle in the dragon mound, and it must also be to stop some more terrifying liliang!

The blood breath in Lin Feng's body was already boiling at this time, and the instinctive induction from the depths of his soul made him full of an inexplicable emotion for this giant dragon, and after standing for a long time, Lin Feng set his eyes on the stone tablet beside him.

This stele was originally the spiritual eye of the entire spiritual vein, but the stele was directly inserted under the ground, and its root was firmly grasped by a dragon claw in the palm of the hand, making it immovable!

Inside the stele, you can clearly see with your divine sense that a dark cyan alien-shaped jade plate is shining in the depths of the stele's heart, and the spiritual breath strength it exudes is actually ten or even a hundred times purer than the stele with a spiritual eye!