Chapter 67: unknown

Ding!
For the first time, the king beast tooth knife failed to cut the mutated ancient tree, and it also made a crisp sound similar to metal impact.
"Okay, I finally met something good."
A bright smile appeared on Feng Yun's face.
He has a deep understanding of the sharpness of the Wang Beast tooth knife. It can be said that since he got it, he has not encountered anything that can withstand its sharpness.
The old mutant tree in front of him did it, enough to prove its strength and fully qualified to be his weapon.
Feng Yun approached the root of the mutated ancient tree, this time he did not use the King Beast Tooth Knife to cut it, but started cutting.
He was going to cut off the non-mutated parts of the ancient tree first, to see how its core was different from other mutated ancient trees.
At the same time, without obstruction, he can cut it off more accurately and cut it off as quickly as possible.
The white sawdust is like snowflakes, constantly flying away.
Pay attention and you will find that every piece of wood chips is almost the same size.
In a short while, a section of the ancient mutant tree that was about a foot long against the ground was cleaned up.
"It's so pretty."
Without obstruction, the tree's heart appeared before Feng Yun's eyes, and his eyes lit up.
The heart of the tree with thick wrists is crystal clear, and it is completely transparent. The wood grain inside is beautiful gold, complete and clear, and it is faintly shining. It is simply a work of art.
Fortunately, Feng Yun is not a woman, otherwise she would scream.
Even so, a strong possessiveness was born in his heart, and he must take this beautiful, no, luxurious tree heart as his own and turn it into his weapon.
Taking a deep breath, Feng Yun calmed himself down.
He began to look for the traces on the tree's heart that had been chopped off by the king's tooth knife.
The depth of the trace not only allows him to initially judge the true strength of the tree core, but also helps him assess the difficulty of cutting the tree core.
With Fengyun's vision, a discovery was made soon.
He found a very slender trace on the tree's heart that was chopped by the king's tooth knife.
If it were not for his excellent eyesight, it would not be easy to find it.
"Good, good, very good."
The smile on Feng Yun's face was even brighter.
The strength of the tree's heart turned out to be better than he expected.
When he used King Beast Tooth Knife to chop and chop the mutated ancient tree, although he did not use his full strength, he also used about 50% of his strength.
With his power that can be called horror now, coupled with the sharpness of the king beast tooth knife, only left such a shallow trace on the heart of the tree, its strength can be imagined.
What's even more amazing is that when he chopped and chopped the tree heart, he could clearly feel its toughness.
The moment the blade touched the tree's heart, it had a slight deformation that was not easily noticeable, and it was this slight deformation that allowed it to successfully unload more than 50% of its power.
In other words, ten percent of the power acts on it, and the real damage it can cause is less than half.
Coupled with its own strength, its bearing capacity will reach an astonishing level.
This is simply the most ideal weapon for Fengyun.
After confirming the strength of the tree's heart, Feng Yun didn't immediately slash his knife, but looked at it with a thoughtful expression.
After a while, he finally moved, but he still didn't cut the tree heart, but dig down along it.
Through the observation just now, he realized that if he cut along the ground, it would destroy the value of this ideal weapon blank.
The skeletal forest has existed for a long time, and the ground must have been raised a lot more than when the trees were alive.
Simply put, there must be a long section of the mutated ancient tree in front of him buried under the ground.
If you don't want to cause waste, you'd better dig it down into the ground until it's roots are cut. No, if possible, finally plan it up by roots, pack it, and take it back.
With Fengyun's current strength, it is of course not a problem to plow the soil.
In a short while, he dug a big hole in the ground, which was already more than three feet deep.
"Fortunately, I found it early, otherwise it would be a waste to cut it directly."
Feng Yun looked at the roots of the tree that had not yet appeared at the bottom of the pit, and couldn't help but feel grateful.
If it were cut directly at that time, such a long section buried in the ground would be wasted.
After digging down about a foot deep, Feng Yun finally saw the roots.
He didn't stop, but accelerated the speed of digging.
He continued to dig down in the direction where the roots of the tree extended. He was really ready to take the entire tree with its roots.
Somewhat different from Fengyun's imagination, the roots of the mutated ancient tree did not rot away, at least not as badly as he expected, some thicker roots were still there.
This is not bad news for Fengyun.
During the excavation, he also cleaned the roots of the tree.
He found that they seemed to continue to play a role after the tree died, continuously delivering nutrients to the tree core, causing it to mutate.
In the process of conveying nutrients, they themselves are also mutating like the tree core.
Although their degree of mutation is far less than that of the tree core, their strength is still not weak, and even stronger than the mutated ancient tree he cut down before.
Take them back and cut them off, whether they are polished into arrows, or made into spearheads for javelins and spearheads, they will all be rare boutiques.
From this perspective, Fengyun hopes that the more they are, the better.
After discovering the secret that the tree heart would mutate, Feng Yun also raised a question in his heart.
What kind of magical existence is there in the underground that can cause such a earth-shaking change in the heart of the tree?
He decided to look for the answer, not only because he wanted to lift the veil of this magical existence, but also because he realized that it might be a good thing.
Ordinary things can make such a big change in the heart of the tree, he would not believe it if he was killed.
Driven by curiosity, Fengyun digs much faster.
In less than five minutes, Fengyun went down almost five feet deep.
At this time, the answer he wanted to seek had already begun to take shape.
The root of the tree is indeed not in ordinary soil, it grows on a piece of jade-like thing, light red, looks very delicate and smooth.
The ends of the roots are deeply pierced in the "Jade".
The existence that mutates the core and root of the tree should be in the "Jade".
Feng Yun stretched out his hand to touch the "Jade", and he immediately had a judgment that it was not jade.
Jade should feel cooler to the touch, but it reveals a hint of warmth. Not only that, it has some elasticity.
I poke it with my finger, it is quite elastic and very strong, but I didn't even poke it.
Although he didn't use much power when he poked, with his current power, even with only half of the power, the destructive power caused was quite large.
Excavation continued, Feng Yun decided to dig out the strange substance that had been firmly combined with the roots of the tree, and transport it out of the bone forest along with the mutated ancient tree as soon as possible.
He didn't know how long his deceptive trick could last, but he definitely didn't want to be pounced on by countless nail head bugs. Just thinking about it made people shudder.
The volume of the miraculous substance is much larger than Fengyun expected, much larger than a house.
For an ordinary person, if you want to dig it all out, it may not be possible to do it in ten and a half months.
But for Feng Yun, it was not a problem at all. With a wave of his hand, a large amount of mud flew out immediately.
From the outside, the big pit at the root of the mutated ancient tree is like a fountain, but instead of water, it sprays out mud.
It took less than an hour and Fengyun completed the excavation at an astonishing speed.
He didn't immediately push the strange substance out of the ground and transport it away with the mutated ancient tree, but circled around it.
The situation and Fengyun's expectations deviated once again.
The strange substance does not exist alone. There is a tube-like thing under it, which is thick enough for two people.
There is no trace of splicing between the tube and the bottom of the strange substance, obviously they are one body.
At this time, Fengyun faced a choice.
Whether to continue digging along the pipe, or cut it off now, and leave immediately with the strange substance and the mutated ancient tree.
After a little pondering, he chose a compromise.
Continue to dig down the pipe, but after digging to a certain depth, if he has not seen the end of the pipe, he will cut it off.
After digging down two feet deep, Fengyun still did not find the end of the pipe.
"Let's stop here."
Feng Yun pulled the Wang Beast Fang knife from his waist and was about to cut the tube, but at the last moment he stopped again, the blade was less than a slap away from the tube.
The reason he stopped was very simple, he discovered a new situation.
When the peripheral light of his eyes swept across the bottom of the pit accidentally, he found that the dirt in a place seemed a little different from the dirt he dug out.
He squatted down, inserted his palm into the abnormal soil, and dug out.
The soil underneath is really different. The soil he dug before was all ordinary soil, but the soil he dug out now shows a granular shape, which is more similar to sand.
In addition, its color has also changed, showing a dark red color, which is obviously different from the color of the soil he dug out earlier.
"Keep digging. I want to see what kind of secrets exist in this underground."
Feng Yun acted immediately and continued digging down the pipe.
After digging about two feet deep, Fengyun clearly felt the difference.
What the fingertip touched was no longer gravel, it turned into a stone, and it was still a very hard stone.
His fingers encountered resistance during the insertion process.
With his current body strength, ordinary stones, he doesn't need to use much force, his fingers can easily pierce them.
Fengyun cleared the gravel to one side, and the stones below can finally be seen clearly.
Its color is also red, but different from the color of the gravel covered on it, it is a bright red, and it exudes a fishy smell similar to blood.
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