Xu Feng slowly sank to the bottom of the lake, this piece of lake water is clear and translucent, like a flowing crystal, there are all kinds of strange stones at the bottom of the lake, large and small forests are densely packed throughout the bottom of the lake.

Between these strange stones, there are a lot of bones, there are humans and beasts, and even huge creatures with a body size of more than ten meters, most of these bones have been frozen by the lake water crispy, there is a layer of hard shell on the outside, breaking these shells, the crisp bones turn into powder in an instant, and slowly sink to the bottom of the lake.

Xu Feng slowly swam along the wisp of perception, and when passing through a huge skeleton, Xu Feng directly split a skeleton in front of him with a sword, only to hear a "click", the mountain-like skeleton trembled violently, cracks appeared, the sound of breaking was endless, and the surrounding water waves began to ripple continuously, Xu Feng was shocked, and hurriedly dodged into the distance.

In a short time, the mountain-like skeleton collapsed entirely, and a burst of gray-white ashes swayed, and the surrounding lake was muddy.

These bones have been immersed in the water of the lake for hundreds or even thousands of years, and every bone debris is extremely heavy, and in a short time, the bottom of the lake is covered with a thick layer of gray sand.

On top of this piece of gray sand, a crystal white rib that was only more than a foot long lay horizontally in this gray sand, and the surface exuded a glowing light, allowing Xu Feng to see it at a glance.

Xu Feng smiled slightly, picked up this rib, and suddenly a chill penetrated into his palm.

"Shhh Xu Feng put this rib directly into the package, rubbed his palm, and the palm that was originally cold to the bone actually had a burning sensation at this time.

The chill from the ribs was several times colder than the lake water, and a trace of coolness entered the body along the meridians of the arm, and the power of thunder and chaos in the dantian trembled slightly, and it became more refined, and Xu Feng's own cultivation was also improved a little.

This shocked Xu Feng's spirit, thought about it, and directly took out the rib, held it in the palm of his hand, and the Chaos Alchemy Technique was unleashed, and the mixed internal force entangled with the power of thunder and the power of chaos in his body became more refined under the impact of the cold.

A thin layer of ice appeared on the surface of Xu Feng's body, crystal clear, as if it was draped with a layer of ice armor, and the chill emanating from the ribs was too heavy, almost freezing his body, but fortunately, the chaos alchemy technique was constantly used to counteract the chill and refine the xenomorphous internal force in the body.

The ribs more than a foot long kept disappearing, and it didn't take long for Xu Feng to leave only a handful of white ashes in his palm, and the ashes floated in the lake water, slowly sinking to the bottom of the lake, mixed with the rocks at the bottom of the lake.

Xu Feng's strength at the peak of the ninth order of the main level suddenly took a big step forward, and he was only half a step away from breaking through.

A smile appeared on the corner of Xu Feng's mouth, as soon as he entered here, he didn't expect to improve his cultivation, which was simply an unexpected joy.

As soon as his mind moved, the entire bottom of the lake began to tremble violently, and the bones at the bottom of the lake shook violently, and the sound of breaking was endless, and the entire bottom of the lake began to become chaotic.

Soon, the bottom of the lake was calm again, and as far as the eye could see, there were no more skeletons, just a thick layer of ashes on the bottom of the lake.

In this piece of ashes, there are only three bones of different sizes, the smallest one is the size of a phalanx, and the largest one is only half the length of a palm.

Xu Feng sighed slightly, it was really disappointing that only four pieces were condensed at the bottom of such a large lake.

After absorbing these three jade-like jade bones, the increased cultivation was only half of the one just now.

"This has saved me years of work, and I am not satisfied?" Xu Feng smiled slightly, shook his head and sighed.

Without the interference of these bones, the ripples of chaotic power that seemed to be there were even more obvious, and Xu Feng clearly sensed one place and stood there.

There was a chaotic force coming from under his feet, constantly burrowing into his body from the soles of his feet, and it couldn't have been more obvious.

Xu Feng's right foot strained slightly, and a force penetrated into the ground.

With a "bang", a basketball-sized treasure chest drilled out of the bottom of the lake and appeared in front of Xu Feng, suspended in the lake water and trembling slightly.

Xu Feng was overjoyed in his heart, but he didn't immediately reach out and touch it, carefully looking at the treasure chest in front of him.

This treasure chest was different from all the treasure chests he had seen before, it looked like a jade box, the whole body was crystal clear, like crystal, exuding a warm luster, and there were slightly raised lines on the surface, forming a large cloud pattern, and the chaotic aura was emanating from the treasure chest.

This treasure chest is very wonderful, it looks like a delicate jade, but because of this chaotic aura, it suddenly becomes mysterious.

The treasure chest was translucent, and a black shadow inside was constantly wriggling, looking like a living thing.

Xu Feng slowly stretched out his hand, and after touching the treasure chest, the attributes of the treasure chest suddenly appeared in his mind, this is a locked treasure chest, and there is a small jade lock on the side of the treasure chest, which looks very exquisite.

On the surface of the jade lock, there was a mysterious aura, Xu Feng was about to forcibly smash the jade lock open, and suddenly felt a danger, as if as long as he dared to cause damage to the treasure chest, this treasure chest could take his own life.

The hand that raised the flying sword froze for a moment, and slowly retracted it, and when he withdrew the flying sword, the piercing sense of threat disappeared at the same time.

"Can't even smash it open?" Xu Feng gasped, on the earth, how many locked treasure chests were directly smashed open by Xu Feng, and the lock-picking skills in his skill bar were rarely used, but even if the treasure chests were smashed, they could also give him some proficiency in lock-picking skills, and by now, Xu Feng's lock-picking skills had reached the master level.

However, this treasure chest containing the power of chaos, if you want to open it, you must have a god-level lock-picking skill, which makes Xu Feng's face suddenly become extremely ugly.

This treasure chest is the highest quality treasure chest he has ever seen in his two lives, and it is really unwilling to give up like this. The treasure chest is also the same as other bones, buried at the bottom of the lake for hundreds of years, the chill is refreshing, holding it in the palm of your hand, as if holding the jade bone just now, the chill on the treasure chest is even stronger than the jade bone.

A trace of chill poured into his body, and the Chaos Alchemy Technique spontaneously started to work, slowly digesting, Xu Feng did not stop his luck if he obtained the treasure, and his internal force was refined again.

At the moment when his chaotic power appeared, the chaotic power in the treasure chest was like a shark smelling blood, and it frantically surged towards Xu Feng's body, mixed with the cold, and suddenly made Xu Feng feel like pins and needles in the meridians in his body.

With the disappearance of the chaotic power in the treasure chest, the treasure chest that originally emitted fluorescence also slowly dimmed, and the small jade lock on the treasure chest cracked directly with a click.

……