"The life core of planetary-level life has appeared here, except for the first civilization, which is not clear to Lombertan, from the second to the eighth civilization, there has never been a planet-level life at all!"

Lin Feng knew very well how terrifying planetary life was, and Lombettan was also very sure that when it came to this world, it was already at the end of the second civilization.

From the second civilization to the eighth civilization, there was no planetary life.

As for the current human civilization of the ninth civilization, the strongest is only the combat power of the Sage, at best, it is only four life leaps, which is the weakest of the nine civilizations.

There is only the mysterious first civilization, which seems to be faintly shrouded in a veil of mystery, which makes it impossible to see clearly. If this blood-colored crystal is really the life core of planet-level life, it may be related to the first civilization.

"Lombettan, can you be sure that this is the remains of the First Civilization?"

Lin Feng asked Long Betan in his mind.

"I can't confirm it at all, the first civilization is in the clouds, everything is very mysterious, I can't confirm it unless I can get more information. ”

Lin Feng nodded, he only had some suspicions that this place was related to the first civilization, and he was not sure.

The shaking of the grotto became more and more violent, and Lin Feng and the Invincible Fist Saint quickly left the sixth grotto and continued to walk down the floor.

Strange to say, although this tremor became more and more intense, it would stop for a while, and by the time Lin Feng and the Invincible Fist Saint had left the sixth grotto and entered another grotto, the tremor had already disappeared.

"Dean, is the Eighteen Grottoes of the Dragon's Head extending all the way underground?"

Lin Feng asked with some curiosity.

"No, the Eighteen Grottoes of the Dragon's Head is just a general term, which means that there are eighteen grottoes. But some of these eighteen grottoes are parallel, some are extending downward, and they cannot be generalized. We used to explore these grottoes, but because we encountered an emperor-level demon, we had to give up. Even, we're not sure if there are more grottoes. ”

Lin Feng was silent in his heart, it turned out that the Invincible Fist Saint had only explored the eighteen grottoes. But think about it, there are emperor-level demons in these grottoes, if they can all explore it once, wouldn't the Invincible Fist Saint already know all about the grottoes, where would he ask Lin Feng's help again to explore again?

"By the way, where are those emperor-level demons?"

"It's the eighteenth grotto below! Last time, I met those two emperor-level demons there, but I suffered heavy losses and almost didn't escape. ”

Thinking of the last experience, the Invincible Fist Saint still has some lingering palpitations, but at the same time, he has some pockets. He was known as the Invincible Fist Saint, and his strength among the nine Saints was among the top few, but he was disgraced by the two emperor-level demons, and he was extremely embarrassed.

"Okay, then let's continue to explore, as if the vibration just now is also coming from below. ”

Lin Feng also had a great curiosity about the grottoes below. If before, he was just to help the Invincible Fist Saint, or to make a little contribution to the human race.

So now, when he discovered the life core of planet-level life, Lin Feng had a great interest in this grotto, and the secrets contained in it, and even some things, might have a great effect on his cultivation.

Now it was Lin Feng who took the initiative to ask to explore this grotto.

As the Invincible Fist Saint and Lin Feng continued to walk down, they passed through the seventh grotto, the eighth grotto, and the ninth grotto......

The style of these grottoes is basically the same, they are all similar, and the murals on the walls are also some strange things.

And in each grotto, Lin Feng found an altar.

Seeing these altars, of course Lin Feng would not let them go, even Long Betan said that the core of life was a good thing, and he naturally had to "scrape" it clean.

Therefore, every time he encountered an altar, Lin Feng would smash it, but one after another, when he arrived at more than a dozen altars, Lin Feng only found about five blood-colored crystals, that is, the life core of planet-level life.

The rest of the altar was either none, or it was powder.

Coupled with the blood-colored crystal that Lin Feng had obtained before, Lin Feng now had a total of six planet-level life core fragments on his body.

Just as Lin Feng continued to go down, suddenly, the tremor came again, and this time it was even more violent, and even Lin Feng could feel the source of the tremor, which was very close.

Now Lin Feng was already on the seventeenth altar, and according to the Invincible Fist Saint, those two emperor-level demons were in the eighteenth grotto.

"Lin Feng Sage, if you encounter two emperor-level demons, then don't keep your hands, do your best, the two of us join forces and take the lead in killing an emperor-level demon!"

"Understood".

Lin Feng nodded, the Invincible Fist Saint had been waiting for this day for a long time.

"Whoosh".

The two of them immediately sped up, and it suddenly became clear that it was a brand new grotto.

This grotto was very large, like a huge underground palace, Lin Feng had never seen such a huge underground structure. Moreover, as soon as he stepped into this grotto, Lin Feng's Spear of Destruction kept vibrating, far more violently than any life core he had encountered before.

"There's a life core here, too, and it's probably huge!"

Lin Feng's heart moved, although the life core was precious, they were very likely to face the emperor-level demon, and they still couldn't be impulsive.

"Boom".

The grotto shook violently again, Lin Feng and the Invincible Fist Saint quietly stepped into the eighteenth grotto, and they didn't go far before they saw that on the altar in front of them, there were two emperor-level demons, who seemed to be frantically destroying the altar.

But this altar is very strange, there are countless murals on the altar, and there are faintly formed chains, every time the two emperor-level demons collide, the chains will flicker once, but there is hardly any tendency to weaken.

The chain blocked the attack of the two-headed emperor-level demons, and blocked the two-headed emperor-level demons from the altar.

"It's these two emperor-level demons, good guys, compared to the last time, their size is actually so much larger?"

A glint flashed in the eyes of the Invincible Fist Saint.

Lin Feng was also the first time he had seen an emperor-level demon, and he often heard about the emperor-level demon from the mouths of the sages, and Lin Feng had already imagined the emperor-level demon very strongly.

But now, seeing these two emperor-level demons with his own eyes, Lin Feng still felt that his previous ideas were too conservative.

The two emperor-level demons in front of him, each of which was hundreds of meters long and tens of meters high. One of them, like a cow but not a cow, was covered with black scale armor like iron armor, enveloping the whole body, exuding a fierce aura.

This emperor-level demon is called the Ink Emperor Demon by the Invincible Fist Saint!

The other head is also hundreds of meters long, but the body is very short, only more than ten meters high, and the whole body is flattened, the body is like a meat worm, constantly wriggling, there are almost hundreds of thick legs under the feet, and there are tentacles on the body, which can be hard or soft. It looks very hideous and terrifying.

This emperor-level demon is called the Thousand-Foot Emperor Demon by the Invincible Fist Saint!

The two emperor-level demons were concentrating on attacking the chains on the altar, and they didn't seem to notice the intrusion of Lin Feng and the Invincible Fist Saint.

"Lin Feng Sage, that Ink Emperor Demon, has a very strong defense and is difficult to deal with. The two of us will join forces first, and try to inflict as much damage or even kill the Thousand-Foot Emperor Demon as possible!"

The Invincible Fist Saint and the two emperor-level demons have fought each other, so they naturally know the details of the two-headed emperor-level demons.

"Okay, let's deal with the Thousand-Foot Emperor Demon first!"

Lin Feng took a deep breath and locked his gaze tightly on the Thousand-Foot Emperor Demon.

"Flame God Kingdom!"

"Boom".

Without the two emperor-level demons paying no attention at all, the Invincible Fist Saint burst out with all his star power in an instant, and the Flame Divine Kingdom descended in an instant, enveloping the entire grotto.