The cowhide was lifted, and a domineering energy rippled out, accompanied by a trembling coercion. A large divine crystal was lying there quietly shining with blue light.

Lu Fei was a little confused, and reached out to touch the divine crystal, but before his hand reached it, Yin Lei pushed his hand away. "It is estimated that this is the divine crystal left over from the feathering of Chongming, let's respect the ancestors!"

Lu Qiao also nodded in agreement and spoke of his own opinions. "Not only is this Divine Crystal bigger than all the Divine Crystals I've ever seen, but the pure elemental energy contained in it is even more terrifying. I think that if a trace of elemental energy is drawn out of it, it can be worth hundreds of divine crystals that we have come into contact with. ”

Yin Lei also saw the difference between this divine crystal, and said: "If this divine crystal can allude to the realm of Zhang Chongming during his lifetime, it is estimated that he can destroy the entire human civilization in our world." ”

Lu Fei swallowed his saliva, and there was a hint of obsession in his eyes. "If I absorb it, won't I be able to fly to the sky, pick up the stars and take the moon?"

"Are you awake, your thoughts are like a child swallowing an elephant, can you swallow it? We are too far from its realm, even if we absorb a trace of energy, we will explode and die. Lu Qiao pulled Lu Fei back from fantasy to the cruel real world.

"Let's see what else we can use tomorrow to be realistic. Yin Lei was not as naïve as Lu Fei, and looked at the package again. In addition to the divine crystal, there was also a jade pendant and a ring in the package. Yin Lei held the two things in his hands, and he couldn't feel any energy fluctuations. Yin Lei took out the short knife of the black-robed man, slashed lightly on his finger, and dripped the blood on the jade pendant and the ring, but the blood just slid down the ring and the jade pendant, dripping on the ground, and the two things did not move.

Could it be that these two things are just ordinary jade pendants and rings? Yin Lei shook his head, no, since it is Zhang Chongming's relic, it must not be an ordinary thing, but he hasn't found the right way yet. Yin Lei thought to himself.

"Hey~ It seems that you can't count on these things yet, so let's go ahead with the original plan tomorrow. Let's go back and rest early!" Lu Qiao looked at Yin Lei's actions, probably guessed something, and said with a sigh.

In fact, with so much going on today, everyone feels a little tired mentally and physically. At Lu Qiao's suggestion, everyone also went back to their respective homes to rest.

Yin Lei returned to the room and sat on the wooden bed, holding a divine crystal in his hand that he had previously exchanged for at the base. In fact, Yin Lei had already reached the peak of the transcendent realm of bone refining before entering the miracle of time and space, and he was separated from entering the blood exchange level by piercing through such a layer of paper, tonight he decided to use the remaining divine crystal to impact the blood exchange level, and now every time he increases his combat power, his chances of winning tomorrow will be one more point! I saw him holding the divine crystal in both hands, sitting cross-legged, eliminating all the distractions in his heart, and began to mobilize the elemental energy in his body to gather in the dantian, as the collected elemental energy became more and more, and gradually formed a pitch-black cyclone. When the cyclone in the body slowly echoed with the Divine Crystal outside the body, Yin Lei controlled the cyclone to rotate rapidly, and a stream of pure elemental energy was extracted from the Divine Crystal under the gravitational pull of the cyclone's rotation. The free elemental energy rushes straight to the navel and enters the body, and then flows through the meridians to the whole body. At this time, Yin Lei's whole face was hot and red, his body kept bubbling hot, and his blood began to boil under the stimulation of elemental energy.

I must hold on, my life is up to me!! Yin Lei has only one belief in his heart, and he began to put away his distracting thoughts, no matter how painful and difficult his body is, no matter how hot the blood meridians are, he always retains the calm place of his mind.

With the passage of time, the elemental energy in the divine crystal gradually decreased, and Yin Lei's body was also undergoing earth-shaking changes, and the meridians were subjected to countless energy impacts, making him more resilient than before. And the blood is purer than before, as if it has been repeatedly refined by fire. Some impurities originally attached to the blood and dark wounds and bruises in the body are all eliminated from the body through the pores.

"Click~" With the dissipation of the last trace of energy, the divine crystal turned into a pile of stone powder, and Yin Lei also opened his eyes at this time. Is this the blood exchange level? Yin Lei clenched his hands into fists, feeling that his body was full of energy. When I looked out the window, I found that my senses were clear and delicate like never before.

"I heard that when you step into the blood exchange level, your self-healing ability will increase a lot. In order to verify it, Yin Lei took out a knife and slashed it on his fingertips. Yin Hong's blood dripped to the ground, and the blood of ordinary people would spread from the fingertips to the ground, but Yin Lei's blood dripping on the ground was a blood spot, without any diffusion, quite concentrated. The wound on the fingertip also began to scab over, and at this rate, the wound healed on its own in less than a day, leaving no scar.

Yin Lei was very satisfied with the changes in his body, but the smell on his body made him very uncomfortable. The impurities that had been discharged from the body before stuck to the body and smelled fishy, and the clothes were also wet with sweat, making the slimy thief uncomfortable. He took out a change of clothes from his backpack and walked towards the stream at the edge of the village. At this time, a ray of morning light rose in the east.