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Outside the Xuanzhong Cave, a gray shadow flashed quickly, like an assassin in the night, almost difficult to catch with the naked eye, and only the grass outside the cave could be seen swaying slightly.

Although the night was very dark, in the first layer of Xuanzhong Cave, there were still sixty or seventy people exercising, some boxing wildly against the target, and some practicing boxing against the wooden stake.

Wu Feng's divine sense opened like a spider's web, observing the movements nearby, and after not seeing any hidden masters, his figure suddenly flashed and rushed towards the entrance of the next step.

Although his figure was fast, he did not set off much wind, and he jumped like a swimming fish, passing by at least a dozen people along the way, but no one saw him.

"This Xuanzhong Cave is really weird. Wu Feng stood in the hidden place at the entrance of the steps, his eyes flickered, just now when he rushed over, he felt a strong suction, coming from the soles of his feet, as if his body was thousands of catties heavier in vain, if it weren't for his degree and clumsiness, otherwise he would have been directly exposed.

"Exercising under such gravity is really more effective with half the effort. Wu Feng instantly understood the mystery of this Xuanzhong Cave, he glanced at the entrance of the second layer, and without any hesitation, he rushed over directly.

The pressure of the second layer is about five or six times that of the first layer, fortunately, Wu Feng has already been prepared, and he has exerted sixty percent of the degree, although he is suppressed by gravity, but it is more than enough to hide from these people, at this time, he can't help but miss the benefits of law cultivation, just pinch a stealth spell, and he can swagger over.

Soon he came to the third floor, where there were only two people, one of whom was sitting on the stone platform, closing his eyes and contemplating, and the other woman with a rather delicate appearance was facing the stake, stretching out her hand and gesturing, as if she was feeling something.

Wu Feng glanced at it twice, and then continued straight down.

4th floor, 5th floor, 6th floor!

When he came to the sixth layer, Wu Feng was not hiding, there was no one here, and his master seemed to be able to only withstand the gravity of the fifth layer, and this sixth layer must have the physique of a human immortal realm to be able to barely move here.

Wu Feng glanced at it twice, and then went directly to the seventh layer.

The gravity here multiplied in vain, even Wu Feng felt a little dull, every step was very laborious, and the soles of his feet seemed to be pulled by countless needles and threads, making it difficult to walk.

Wu Feng didn't stop and continued to walk towards the eighth floor.

As soon as he came to the eighth layer, his knees immediately weakened, and he almost fell to his knees, if he really knelt down unguarded, his kneecaps had to be shattered, and under the gravity here, even if a feather fell naturally, the lethality was comparable to that of a human immortal weapon.

Wu Feng gasped for breath, stood hard for a while, and finally couldn't hold on, so he could only sit down slowly, although he was sitting, the huge pressure still made him breathless, like his nose was covered by someone, very uncomfortable.

Click......

The sound of the ribs breaking in his chest sounded clearly in his ears, Wu Feng gritted his teeth and insisted, and soon his nostrils were bleeding, followed by blood spilling from his eye sockets and ears, which was very hideous and terrifying.

Persistence!

Wu Feng's heart roared like a fierce beast, frantically squeezing the last of his strength, more and more broken bones on his body, and finally his jaw was going to fall down, the corners of his mouth were torn, and the nosebleed was almost irrepressible.

Wu Feng originally wanted to seal the acupoint, otherwise it would hurt his body to flow like this, but after thinking about it, under such a huge gravity, even if the acupoint he learned was sealed, it would be automatically unlocked. The gravity here, even if it is a hundred-level gravity technique, is not so terrifying.

Wu Feng could feel the collapse of his body, but he didn't give up, many times, failure is doomed the moment you give up!

Ten minutes, twenty minutes, an hour......

Wu Feng seemed to be competing with himself, when two hours passed, his gravity could no longer support it, and he fought with his last strength to climb to the steps next to him, fortunately, he was only half a step away from the steps, even so, this half step was as far away as thousands of miles of mountains and rivers.

With the last trace of strength, Wu Feng finally moved his upper body to the steps, and the pressure disappeared suddenly, because it disappeared too suddenly, his body did not react, and a mouthful of blood spurted out on the spot, and he passed out.

I don't know how long it has been, Wu Feng woke up quietly, only to feel cold, he subconsciously wanted to tighten his legs, but now he couldn't feel the storage of his legs, he couldn't help but open his eyes, when he saw that he was still on the eighth layer, he breathed a sigh of relief, he looked down, and immediately saw that his legs had become flattened.

And all the bones in the legs were crushed.

The corners of Wu Feng's mouth twitched, he smiled bitterly and was speechless, he took a deep breath, sat up hard, and used his mind to absorb the aura between heaven and earth, and after a while, he condensed a trace of it, and seeing that it was about to pass away from the dantian, he hurriedly used this aura to open the storage ring.

"Compound Bone Pill. Picking out a jade bottle from it, opening it and seeing, there was a turquoise pill inside, Wu Feng raised his head and swallowed three pills in a row, only to feel that his body was not so cold, and at the same time, the ribs in his chest were healing themselves, including the legs in the trouser tube, which were integrated by a warm current, bulging little by little.

Wu Feng slowly dragged his legs and moved his entire body to the steps, and after just a few breaths, his legs were fully recovered.

Wu Feng breathed a sigh of relief and did not go to cultivation again, but reflexively left the eighth layer.

After returning all the way to the house, Wu Feng saw that the sky was bright, he didn't know if he had been in a coma for a day or a few days, his heart was a little drumming, he shook his head, and began to cultivate cross-legged by himself, after the baptism of the eighth layer, his bones were not only healed, but also harder than before, and his strength also increased a lot.

This Xuanzhong Cave is really a good place to exercise people, but there are not many people like him who don't want to exercise, and few can endure the pain of broken bones, of course, even if they can bear it, no one dares to try, after all, they don't have a bone pill.

The sky gradually brightened, and at this time, I vaguely saw a pretty figure on the mountain road, jumping on the morning sun, walking from a golden morning light, it was Fang Xue'er.

Like last time, Fang Xue'er still chose to climb over the wall to enter, after she saw that there was no one in the courtyard, she immediately showed a mischievous sly smile on her face, sneaked to the door, and pushed the door open lightly, a figure was standing behind the door, Fang Xue'er, who just wanted to sneak in, bumped into this figure head-on, and immediately screamed in fright.

Wu Feng rubbed her head and said with a smile: "That's not how thieves are, right?"

When Fang Xue'er saw that it was Wu Feng, she immediately glared angrily, and said, "You are the thief!" As she spoke, she turned her head to avoid Wu Feng's hand, and snorted: "It's only been a day, and you have grown your skills, and you even learn from the master and them, relying on the old and selling the old!"