Lin Xiaofei put away the short stick, pinned it back to his waist, and suddenly caught a glimpse of the cheetah's skin head bulging slightly. So he leaned down and squeezed out the bulging stuff from the mouth of the skin.

An irregular vigilance of the same color as a cheetah's skin, the size of a fist, is the cheetah's demon crystal.

Only when the demon beast reaches the third level will it give birth to the demon crystal, and the demon crystal is the center of the demon element's system of the demon beast, and it is the demon crystal that controls the demon element of the demon beast's body.

And when the demon beast level reaches level six, the demon crystal is not the center that controls the demon element, but also the storage place of the demon element, which contains almost all the demon elements of the demon beast.

Lin Xiaofei had also hunted and refined a lot of things to collect before, but they were basically low-level demon beasts, and there were no demon crystals at all. And the red-eyed pig demon that was hunted that time, although it was a demon beast in the quenching realm, but the demon crystal of the demon beast was generally in the head, and that time it happened that Lin Xiaofei did not destroy the head of the red-eyed pig demon, but brought it back to hand in the task.

Although he doesn't need the demon crystal to exchange for the reward items provided by the Shenbo Mansion, he thinks that this demon crystal must be very valuable, and he can take it out and sell it for money.

Xiao Hei in mid-air suddenly chirped. Lin Xiaofei then remembered that he had promised Xiao Hei to make him a monster barbecue, but now the cheetah is only left with a pair of skins.

Lin Xiaofei gestured to Xiao Hei in the air, and Xiao Hei swooped down and landed on Lin Xiaofei's left shoulder.

Lin Xiaofei tilted his head and looked at Xiao Hei and smiled embarrassedly: "Xiao Hei, the demon beast has been refined by me, next time I will pay attention to it, leave some for you, barbecue and eat." ”

Xiao Hei suddenly shouted twice at Lin Xiaofei's hand. Lin Xiaofei was slightly stunned, stretched out the cheetah demon crystal in his hand, and asked, "What, do you want this demon crystal?"

Xiao Hei didn't respond, but his head was all over his body, and he took the demon crystal in his mouth, and he swallowed the fist-sized demon crystal in a few clicks.

Lin Xiaofei couldn't help but be stunned, and then scolded: "You foodie, how can you even eat the demon crystals of demon beasts, this thing must be very valuable, and you are too loser." ”

Xiao Hei directly retracted his head, gathered his wings, closed his eyes, and stood quietly on Lin Xiaofei's shoulder.

Lin Xiaofei scolded again, and didn't care anymore. It was dark, the moon had climbed into the air, but the sun was still on the other side of the sky.

Soon the secret realm ushered in the night, the sky was still opposite to the sun and the moon, and the sun and the moon hung in the sky at the same time, but the sun at night had no daytime light, and it was like ordinary stars, exuding a faint light. And the moon becomes the protagonist of the sky, emitting a bright moonlight.

Moonlight poured down and sprinkled the ground. The night wind blew, and the grass heads that were blowing the deep grass bent to one side in unison, and when the wind blew over, the grass heads recovered.

Lin Xiaofei directly found a place by the grass below the downhill slope and rested on the spot. Leaning on a stone and falling asleep, but it was only half-asleep, and Xiao Hei, who had swallowed the cheetah demon crystal, kept squatting on Lin Xiaofei's shoulder with his eyes closed, as if he was asleep.

On weekdays, Xiao Hei is very vigilant, and he has never fallen asleep directly on Lin Xiaofei's shoulder like this.

Lin Xiaofei secretly guessed that it should be because it devoured the cheetah's demon crystal, maybe the demon crystal was a big supplement to it, and now it is just in a dormant state, digesting the demon crystal.

For the next period of time, Lin Xiaofei was alone and began to hunt and refine third-level demon beasts non-stop. Xiao Hei was responsible for scouting and looking for demon beasts, and then Lin Xiaofei waited for the opportunity to sneak attack and hunt. After each refining, the remaining demon crystals naturally entered Xiao Hei's stomach.

Lin Xiaofei's realm of the Triple Realm began to improve continuously, and Xiao Hei became more and more sleepy as he devoured more and more demon crystals.

As time passed, Lin Xiaofei knew that he was not far from breaking through the Quenching Quadruple Realm. And Xiao Hei should be about to break through.

Finally, a month after entering the secret realm, after Lin Xiaofei had hunted and refined more than a dozen third-level demon beasts, the barrier of the Quenching Quadruple Realm was violently knocked open.

The power rushed with the blood, the wind whistled between the fists, and the air exploded. A violent and powerful force spread out in all directions.

Lin Xiaofei practiced "Dragon Fist" and "Lingyun Step" on the spot, these two external exercises were almost at the end of his cultivation, and he needed higher-level exercises next.

He retracted his fist, glanced at a boulder not far away, his body flashed, the power of his footsteps exploded instantly, Ling Yunbu unfolded, and instantly flashed to the boulder a few zhang away, and at the same time his right hand formed a fist, gathered all his strength and his right fist, and then punched out.

"Bang!"

Suddenly, the boulders shattered, the rocks flew, and a strong wind set off on the flat ground, rolling up the rocks and deep grass and blowing them all over the ground.

"The Power of a Hundred Horses!"

This is the strength that Lin Xiaofei has after breaking through to the Tempering Fourfold Realm, which is comparable to the strength of a martial artist who has just entered the Bone Refining Realm, as for the defensive power, Lin Xiaofei doesn't know what level he has reached, but he is confident that even a martial artist in the Bone Refining Realm will not be able to hurt his fur with a single blow.

Closing his fist, Lin Xiaofei took a deep breath, feeling that the power in his body began to be a little restless again.

Although there was the effect of Zhou Lingfang's grandmother's yuan power before, which had stabilized his cultivation and the strength of his body, as he continued to refine the demon beasts, and all of them were higher-level third-level demon beasts than before, with the rapid growth of the strength in his body, the power began to be restless again.

Lin Xiaofei even thought that if he continued like this, one day he might lose his mind because of the riot of the power in his body. However, at this time, he could only put this problem aside and leave it to find another way to solve it later.

Another night, after Lin Xiaofei stabilized the strength in his body, he lit a bonfire, set up a fire stand, and barbecued the remaining half of the demon beast.

Little Black was standing on the ground on one side, its body was a little bigger, and even if it didn't spread its wings, its hair was even darker, even darker than the night. However, the dozen or so golden feathers on the wings were quietly lined up among the black feathers as always, not more, nor less, neither larger nor smaller.

"Xiao Hei, this guy has also eaten so many demon crystals, and he should be about to break through. Lin Xiaofei looked at Xiao Hei and muttered to himself.

It's just that Xiao Hei has only shown its speed so far, and has not shown other attack power, and Lin Xiaofei can't tell that it is the level of a demon beast. However, judging from its speed, even an ordinary third-level demon beast would probably not be able to dodge its attacks.

When the barbecue was about to be cooked, Xiao Hei suddenly spread his wings and raised his head to the night sky with a long whistle, which broke through the sky and echoed in the night sky for a long time.

Lin Xiaofei scolded: "You call me Mao, it's the middle of the night." ”

Then he smiled and said: "You kid is really on time, come here, the meat has been grilled." ”

Xiao Hei hurriedly spread his wings and jumped to the campfire, staring at the barbecue on the fire with a pair of eyes, and a low chirp came out of his mouth.