The Nirvana Tower trembled violently, the white light became more and more intense, and at a certain moment, where Xuanyunzi struck, a gap appeared.

It's like a portal that is gradually opening.

Rumble!

Yin Changkong and the others looked shocked, staring at the open Nirvana Pagoda with an incredible expression.

As the portal of the Nirvana Tower opened, a life force that was so rich that it was extremely rich swept out.

At this moment, Xuanyunzi's consumption of the old way was constantly recovering, and even his white hair began to turn black.

The bottleneck of Li Laodao gradually loosened and stepped towards the realm of the Seven Stars Transcendent.

The boundary frog, which was hiding in the distance, had green eyes and rushed over like crazy.

"Get out of the way, leave a place for your frog master!"

Xu Yang also rushed over.

He could sense that when the Nirvana Tower was opened, what swept out was a wave of energy with life force.

After the boundary frog rushed over, he opened his mouth and frantically swallowed the life force.

Xu Yang ran the Qi Source Technique, constantly inhaling the life force into his body and transforming it into Qi Yuan.

The rate at which life force is converted into Qi is much higher than that of any other kind of energy.

If the ratio of spiritual energy to Qi source is 100:1, then the ratio of life force to Qi source is 10:1.

Yin Changkong glanced at Xu Yang in shock, the speed at which he swallowed the power of life was too fast.

No wonder, his cultivation speed was so fast.

It has a very big relationship with his special physique.

Of course, the boundary frog is faster.

The toad, with its mouth open, swallowed almost all the life force except for Xu Yang.

The power of life is so precious, except for Yin Changkong, all of those present are six-star top powerhouses, and they are not far from the seven-star transcendental.

After swallowing the life force, it will inevitably speed up the speed of stepping into the seven-star transcendental.

And Li Laodao is even about to break through.

If all of them are swallowed by the boundary frogs, the loss will be great.

An ancient sword appeared in Yin Changkong's hand.

The sharp aura was revealed.

Staring at the boundary frog, he threatened: "Don't go too far, you suck it all, what should we do?"

The Frog glanced at him and ignored it.

It's just extraordinary, and I can't hurt it yet.

Yin Changkong's face was dark, Nima, he was despised by a toad!

Xu Yang kicked the boundary frog and said in annoyance: "Suck less!"

He knew very well how precious these life forces were to Li Laodao and others.

Once Li Laodao and the others break through to the transcendental, then Skynet's strength will skyrocket.

It is crucial to cope with the imminent return of the ancestors.

The number of strong people means the victory or defeat of the confrontation with the ancestors.

The boundary frog had no choice but to reduce the amount of swallowing and no longer suck up other people's portions.

Bang!

The Nirvana Tower continued to open, and the life energy became more and more intense.

It lasted about ten minutes.

The vibrations stopped bursting.

At this moment, the Nirvana Tower has opened a door that is about one meter wide and about two meters high.

Li Laodao was only a little short of stepping into the extraordinary.

In fact, he can now break through to the transcendent realm.

It's just that the current situation of the Nirvana Tower is unknown, and it has not been broken through for the time being.

And Xuanyunzi is old, and he is closer to the extraordinary.

Especially his primordial god, there was a life fluctuation, and it seemed that he was about to undergo the first stage of transformation.

Xu Yang even suspected that once Xuanyunzi Lao Dao broke through to the transcendent realm, with his powerful Yuan Shen, his strength might surpass Yin Changkong.

However, Yin Changkong can become the number one powerhouse in Skynet, and he must have some other abilities, but he has not discovered it for the time being.

After swallowing so much life energy, Xu Yang found that the Qi source in the Dantian Qi Lake had risen a little.

"This, this ......"

Xuan Yunzi was old-fashioned, and suddenly looked shocked.

He was facing the door of the Tower of Nirvana, and the first thing he saw was inside.

"What's wrong?"

Yin Changkong and the others came over to take a look, and they were all stunned, with a shocked look on their faces.

Xu Yang also walked over.

The Tower of Nirvana has been opened, and no undead corpses have rushed out.

Obviously, this is not the case as expected.

When I came to the gate of the Nirvana Tower, I looked inside, and I was also stunned.

Inside the Nirvana Tower, there are layers of shelves, like bookshelves, and each shelf has nine grids.

On each lattice, there is a placenta hanging vertically?

Or maybe it's some kind of placenta-like sac.

However, in every sac, there is a fetus in gestation!

Every fetus is almost fully developed, and it seems that it is not far from giving birth.

What's even more weird is that every fetus is alive.

This Nirvana Pagoda has nine floors, each of which is filled with fetuses.

The situation in front of us is beyond the realm of science.

At least, not the current science of the earth that can explain it.

"What is this?"

The fetus in the fetal sac is almost fully developed, with eyes, nose and ears.

Judging by the shape of their ears, they are not earthlings.

Rather, the people of the ancestors.

It's exactly the same as the ears of the undead.

These are the fetuses of the ancestors.

Could it be that the ancestors relied on the Nirvana Pagoda to reproduce, not the mother's pregnancy and childbirth?

Incredible!

The Boundary Frog probe glanced at it, was surprised, and said, "Resurrection Species?"

Brush!

All eyes were on it.

"What is the resurrection seed?"

Xu Yang asked.

The boundary frog is very arrogant, if Xu Yang doesn't open his mouth, Yin Changkong and any of them ask, the boundary frog will not pay attention.

Anyway, I can't hurt it, so I have enough confidence to be arrogant.

"The resurrection species is when a race is about to be destroyed, take the excellent bloodline of the race, use some secret technique or means, keep it, wait for the right time, and begin to breed it......"

The origin of the resurrection species of the Boundary Frog is briefly explained.

The resurrection species is a special secret technique when a race encounters a crisis of extinction, preserving the bloodline, waiting for the right time, as if giving birth to a baby, giving birth to a new life, and continuing the inheritance of the race.

And the life that is bred is born with some inheritance, and as it grows up, it will gradually awaken the memory of the race, and with the mission of the continuation of the race, it will continue to expand the ethnic group and strengthen the ethnic group.

Even, if the enemy who destroyed the race has not yet died, then it will lie dormant, waiting for the opportunity to take revenge when it is strong.

The resurrection species is not only the continuation of the bloodline of a race, but also the top powerhouses of that race, who integrate a wisp of their soul into the bloodline, waiting for the resurrection of a certain time, and then lead a new race to rise again.

The races that can save the resurrection species must be very powerful races.

At least, the current civilization of the earth cannot do it.

Xu Yang and the others were shocked, they never imagined that the Nirvana Tower turned out to be the breeding thing of the resurrection seed.

And in the Taoyuan space, there are many, many Nirvana Towers.

The return of the ancestors turned out to be the return of this way!