The three of them joined hands to attack, and harvested a total of six nuclear crystals of energy bodies, Chen Fan gradually discovered some rules, that is, all those with relatively high-end evolution and relatively powerful energy will basically form this kind of walnut core-like crystal, as for the kind of energy body with a small degree of evolution and relatively thin energy, after being broken, it will basically form light spots and automatically disperse, and it will not condense.

In other words, if you want to maximize the energy here, you must at least find an energy body target above level 4.

"Whew!" The Blood Clan Inhuman hiding under a big tree took a long breath, wiped the cold sweat on his forehead and said, "Although these energy bodies do not have the combat power of their previous life, they retain a lot of their previous combat instincts, and once the number is stacked, it is still terrifying." ”

Chen Fan nodded silently, "Fortunately, with the help of Yang Jian's seniors, the energy we have obtained now is extremely considerable, I don't know what step we can achieve after absorbing all this energy......

Speaking of this, the eyes of the three of them became a little hot, and they all bet on the realization of those nuclear crystals that contain sufficient energy.

The six nuclear crystals emitted very strange light spots, each light spot represented a very pure and broad energy, these energy resources were like fragrant food, constantly stirring the nerves of the three people.

Chen Fan handed over the largest nuclear crystal to Yang Jian, because he had the highest level of evolution, and ordinary nuclear crystals would not help him much, only the energy body whose aura had reached the middle end of the fourth level might allow him to make some progress.

As for the remaining few, Chen Fan and the Blood Clan Aliens divided them equally, and tried their best to refine the energy in them.

The energy in the nuclear crystal is extremely pure, almost no need to extract any impurities, it can be directly for refining and absorption, it took a few hours, Chen Fan finished refining all the energy, slowly opened his eyes, and a trace of electricity seeped out of his eyes, and the strong light was full, looking dignified.

The blood clan alien also opened his eyes for a while, his gray eyelids oozed, condensing an extraordinarily sharp edge, and he said slowly, "The energy in these nuclear crystals is indeed very powerful, I can't imagine that after refining less than three, my Qixi Festival is already close to the middle end of the fourth level." ”

Chen Fan said, "After all, it is a fourth-level energy, and I am almost about to reach this level, but ......"

Speaking of this, Chen Fan suddenly changed his words and frowned slightly, "I don't know if you have noticed, the more energy we consume, the slower the evolution rate will be, when refining the first nuclear crystal, I can absorb at least eighty or ninety percent of the energy, but now I can only absorb four or five percent at most." ”

Regarding this, the Blood Clan Inhumans naturally sensed it, and sighed abruptly and said, "It seems that the number of times we absorb nuclear crystals is also effective, and with the continuous deepening of refining, our bodies have become saturated, and we can't achieve the same effect as before." ”

Chen Fan secretly said that it was a pity, if he refined more than a dozen energy bodies according to the refining efficiency of the first nuclear crystal, maybe he would be able to directly evolve to the fifth level of combat power, but things were obviously not as simple as he expected, the more he refined in the future, the less energy his body could obtain, and even if he died, he might not be able to reach the peak level of the fourth level.

At this time, Yang Jian also opened his eyes slightly, cast a light smile at the two of them, shook his head and said, "How can there be so many advantages in the world?" It is very satisfying to be able to improve a small realm, you must know that after the fourth level of combat power, each level promoted is very different. ”

Hearing Yang Jian's enlightenment, Chen Fan was also relieved, nodded and said, "That's right, if the fifth-level combat power is so easy to step into, we don't have to work so hard, we shouldn't set the goal so far for the time being, I'd better try to evolve to the middle of the fourth level first." ”

The Blood Clan Inhuman stretched his waist and stood up, and said refreshedly, "Now that the fourth-level primary energy core crystal has little effect on us, if we want to go further, we must at least hunt down the energy body whose combat power has reached the middle end of the fourth-level, which is not so easy." ”

"Let's go first, and we'll talk about it when we're lucky!"

Yang Jian immediately stood up and led the two of them to continue towards the core of the forbidden land.

The journey behind seems to be relatively smooth, although along the way, there are still a lot of harassment of energy bodies, but it is rare for energy bodies whose combat power can reach level four or above, and the three of them are also like thunder and quickly shot, directly killing all the energy bodies that appear in front of them.

However, they didn't try to refine these low-end energy bodies again, after all, when they evolved to this level, ordinary energy bodies really couldn't play much of a role, Chen Fan collected those nuclear crystals with slightly larger energy sources, and put them all into the space ring and stored them.

Although these low-grade nuclear crystals did not pour out much for him, they were tantamount to a huge treasure for the many supernatural beings in Yunxi City, and Chen Fan was looking forward to creating another person with fourth-level combat power.

There was a lot of pale black smoke in the depths of the forbidden place, and this smoke hung over the sky like a thick cloud, obscuring the sight of the three of them. They can only rely on their intuition and always move in one direction, under such an aimless hurry, and about a whole day has passed, Chen Fan and the others still have not come to the end.

The expression of the Blood Alien was a little unsettled, and he whispered as he walked, "I don't know where these black air currents are coming from, it can block my senses, and I don't remember what direction I came from." ”

Chen Fan also frowned and said, "If this continues, we may get lost here, not only will we not be able to find the geocentric primordial species, but we are afraid that we will not even be able to find the way back." ”

Hearing the words of the two, Yang Jian shook his head slowly and said, "Don't worry so much, as long as we can reach the core of the forbidden land, we will definitely be guided by the ancestors, the wise men of the Wu Clan, as early as 100,000 years ago, anticipated today's situation, it is impossible not to leave a way back for us." ”

Waiting for Yang Jian's assurance, the two of them began to continue to walk forward confidently and boldly, and after about a few hours, suddenly, a strong aura slowly emanated from the depths of the gray space.

"What's that......"

Feeling the solemnity of this aura, Chen Fan suddenly frowned deeply, and even his steps stopped.

This time, even Yang Jian's brows furrowed a lot, and the looming strong aura seemed to be very weak, but the condensation of the aura made him sense the slightest danger.

"Shall we go the other way?"

Chen Fan sensed the air flow surging in front of him, and his heart was very unsettled, this kind of aura was definitely not comparable to the energy body of the fourth-level mid-range combat power before, I am afraid that he had already crossed the threshold of the fifth-level combat power, and it was much stronger than Yang Jian.