Zhou Heng continued to move towards the depths of the cave.

Don't look at the entrance to this cave, but the more you go inside, the more spacious it becomes. Of course, it is not spacious enough to walk sideways, and it can probably accommodate three people in parallel.

After walking for more than ten minutes, there was still no intention of coming to the end, Zhou Heng was a character who did not admit defeat, and as soon as his temper came, he decided to stick with this cave, and he had to go to the end!

It's still dark outside, let alone inside the cave, you have to reach out and can't see your fingers, but fortunately, there is no fork in this cave, just a road that extends forward, but you don't have to worry about getting lost and not being able to get out.

Zhou Heng occasionally slashed at the cave wall with his long sword, and looked at the surrounding environment with the faint light of the friction of the sparks.

Another half an hour passed, and he still did not reach the bottom of the cave.

If you want to change to another person, you have to turn around and go back, but Zhou Heng is strong-tempered, since he has made up his mind to go to the end, then he will definitely not give up halfway - otherwise, he will not persist under the test of the black sword for ten years!

As long as it's not a maze, then you can always come to an end.

After another hour, a bright light suddenly appeared in front of me, although it was very faint, but it was a bright light for those who had been in darkness for a long time. Zhou Heng was happy in his heart, but his vigilance was even worse, and he held the long sword in his right hand tighter.

A few steps further, the light grew brighter and brighter, revealing a hole.

When he stepped out, his eyes suddenly opened up, only to see the moon and stars, this is actually a deep valley.

Zhou Heng looked up at the sky, but he didn't know when the heavy rain stopped, and the grass everywhere in the valley was covered with stars and water droplets, which was even more verdant and green, exuding a vibrant atmosphere.

The valley is not big, it is only a hundred meters in a circle, surrounded by mountains, it is a unique valley. The mountain wall is steep, and it may be difficult for the ape to climb to the top.

There is a small pond under the western wall, and on the edge of the pond is a large tree, the canopy of which completely covers the pond, and the leaves rustle gently in the night breeze.

When his gaze swept under the big tree, Zhou Heng's eyes couldn't help but tighten.

A corpse!

Leaning on the tree, the head, neck, and hands have turned into white bones, and the rest is hidden under a vermilion brocade robe, which does not reveal the white bones of the forest, but a skull is already terrifying.

Zhou Heng only remembered at this time that he had just killed a person not long ago!

What shocked him was that he didn't feel anything uncomfortable, as if he didn't kill someone, but slaughtered a chicken and a dog!

"The path of martial arts, killing is inevitable, it seems that I have adapted to it in advance!"

"However, I have no intention of being a murderer...... My bottom line is, don't mess with me!"

Zhou Heng's eyes were firm, put the murder aside, and strode under the tree.

The bones of the corpse's head and neck were very intact, Zhou Heng picked up the corpse's clothes, and saw that three ribs were broken at the position of the chest, and the broken bones also fell to the ground, flashing with a crystal color, extremely white.

"This person should have been hit by a blunt blow before his death, which shocked his internal organs, and then fled here, and died of his injuries!"

"This is evidenced by the complete garment on his body, if it were pierced with a sharp weapon, it would not have left a wound in the garment, and if his enemies chased him, he would not have been able to maintain this position until he died!"

"Judging from the shape of the bone injury, it was clearly broken by a punch!"

Zhou Heng picked out a broken bone and pressed it hard, but the broken bone was surprisingly tough and did not move. He encouraged the true yuan power of his whole body, and broke it again, but the broken bones were still there, harder than iron!

"The strength of my hands now is definitely more than 1,000 catties, and this bone has experienced at least decades of wind and rain, and it should have lost its previous toughness a long time ago, how can it still have such strength?"

"A few years ago, a tomb robber dug up the grave of an ancestor who had passed away for decades, and when he was reburied, he accidentally stepped on the bones and immediately shattered them!"

"That ancestor was an existence in the Blood Refining Realm when he was alive!"

Comparing the two, Zhou Heng could only come to a conclusion that shocked him.

Ascend to the sky!

This corpse has walked the road to heaven and achieved an incredible existence before his death!

In Zhou Heng's cognition, the warrior who crossed the road to heaven was equivalent to the legendary immortal, but such an immortal was blasted with his fist and broke his sternum, and finally died miserably here!

The strong have their own strong hands, even if they cross the road to heaven, they are not immortal and immortal.

Zhou Heng carefully searched the corpse and found a book and a token near the hip bone.

The book was supposed to be hidden in the man's chest and abdomen, close to his body, but as his body decayed, the book also fell off before it appeared at the hip bone.

However, I don't know what material this book is made of, but it has undergone the decomposition of the corpse and has not been finished with it! Moreover, after such a long time, the book has not changed in the slightest, and it is extremely soft to the touch, as if it were not paper, but human skin.

It's not easy!

If the pages of a book can be made from such precious materials, what kind of information is recorded on them? Moreover, it is from a peerless powerhouse who may have crossed the road to heaven, how precious would it be to be able to be collected by such a strong person?

There was no handwriting on the cover, and Zhou Heng couldn't hold back the curiosity in his heart and opened the paper.

"Moon Shadow Heart"!

There are only four words on the first page, and the writing is full of vigor and atmosphere.

A single trick can show that this is basically a cultivation exercise, but this "Moon Shadow Heart Formula" may still be the reason for the fall of that strong man, so how important is it?

Zhou Heng couldn't help but continue to read through this exercise.

That's right, this is indeed a cultivation exercise, with only more than 4,000 words in the whole text, which is slightly obscure, but Zhou Heng paused for a while, and it took almost a few seconds to suddenly understand, and it was not difficult to understand.

His comprehension continued to increase in the process of cultivating Ling Tian's Nine Styles, and although he had not yet mastered the first style of swordsmanship, it was not difficult to comprehend the Moon Shadow Heart Technique.

"I'd like to try it and see how effective this set of exercises is!"

Zhou Heng sat down cross-legged, refining the food in his body with the method of the Moon Shadow Heart Technique, extracting free energy, and then transforming it into his own true yuan power.

"Hmm!"

After running the Moon Shadow Heart Technique in his body for a week, Zhou Heng couldn't help but stop, a look of shock on his face.

Efficiency!

The Moon Shadow Heart Technique is more than twice as efficient at transforming True Yuan Power as the Sun Essence Technique!

According to the description of the Moon Shadow Heart Formula, if you cultivate under the moonlight, the effect can be increased by 30%, but the Burning Sun Technique can also increase the speed by 20% when you cultivate under the sun. Regardless, the Moon Shadow Heart Technique is much stronger than the Sun Technique!

Even if it's only twice the speed, it means that it is also necessary to reach the Bone Refining Realm, and if it takes ten years to cultivate with the Burning Sun Technique, then it only takes five years to use the Moon Shadow Heart Technique!

No wonder this person has been killed!

You must know that on the path of cultivation, time is definitely the biggest enemy!

For example, if the Meat Refining Realm cannot be broken through before the age of twenty, then the possibility will be infinitely reduced, and there is basically no hope - that's why the Zhou family has the rule that if they can't reach the Meat Refining Realm before the age of eighteen, they can't cultivate.

Although the exercises only increase the speed of accumulation of true yuan power, if you can save half of the time on this, you will have more time to break through the great realm.

Moreover, the higher the realm, the longer the time to accumulate true yuan power, after reaching the blood refining realm, the breakthrough of the small realm can be measured in ten years! If it can take fifteen years to reach the peak of the twelfth layer of the refining body, then the more time it can use to impact the path to heaven will naturally be!

Life is in a hurry, a hundred years pass in a snap of a finger, how many decades can be wasted?

Although Zhou Heng could get free energy from the Black Broken Sword, the Moon Shadow Heart Technique didn't have much effect on him at the moment, but who knew how long the ability of the Black Sword could last?

Maybe after giving him back his ten years of penance, it will be over!

Moreover, this set of exercises can also be passed on to Zhou Dinghai.

Zhou Dinghai had already delayed his cultivation time for many years, if he changed this Moon Shadow Heart Technique, then with Zhou Dinghai's talent, he would be able to reach the twelfth level of refining his body in five years at most!

Zhou Heng put away the exercises, and his father would definitely return during the New Year.

There was still an hour or so before midnight, and Zhou Heng took advantage of this time to dig a pit and bury the corpse, since he had obtained a superb exercise from the other party, then letting the deceased be buried was also the only thing he could do.

If you are buried with the deceased, there is also the token, one side is written with the word "Nine Spirits", and the other side is "Su", I don't know what material Lu Dao is made of, and the whole body is purple.

Zhou Heng thought that it was the identity token of the deceased, so he also buried it together.

After doing all this, it was almost early in the morning, and he sat down on his knees, quietly waiting for the black broken sword to release its energy.

Airplanes!

In the moment of midnight, the black broken sword trembled slightly, and a huge amount of power poured out, instantly filling Zhou Heng's entire body. He hurriedly unfolded the Moon Shadow Heart Technique, absorbing and refining these free energies frantically.

In less than twenty minutes, all the energy had been refined by him, and Zhou Heng opened his eyes, but he was shocked!

A figure appeared on the mountain wall above the pond, constantly moving!

Anyone?

Zhou Heng hurriedly flicked up, his long sword unsheathed, and put on a defensive posture.

He looked up at the sky, although the moon hung high in the sky, but the cliff was steep, and it was impossible for a person to stand on it, so this figure was definitely not projected from above.

Could it be that it is reflected from beneath the surface of the water?

Zhou Heng suddenly had an unbelievable feeling, people swimming and walking under the water are completely different, the figure is definitely walking, not swimming!

Who can walk underwater?

Kelpie?