Sky Prison signed in for 20 years, I am invincible in the world

As a series of system prompts sounded in Chu Xuan's mind, one mysterious and extraordinary treasure after another soon appeared in his system space.

It has to be said that Chu Xuan really found the right place to gather wool this time.

Although the treasures sealed here have been taken away in advance, these treasures have left traces and connections here.

According to the rules of the sign-in system, as long as there is a connection, it can be intercepted from the long river of time.

What?steal?

Of course not stealing!

How can it be called stealing for cultivators? At most, it is just a temporary borrowing.

That's right, it's just a temporary loan, and when he doesn't need it, he will definitely return it.

"As long as I can remember..."

Chu Xuan muttered to himself seriously.

Regardless of whether other people believe it or not, he himself believed it anyway.

[Ding, sign-in failed——]

With the last system notification sounding, the expensive treasure house in front of him quickly collapsed under Chu Xuan's gaze.

Even the huge Jialou Palace also collapsed at a speed visible to the naked eye, and turned into a mess of dilapidated ruins in an instant.

No one can tell that this place used to be an extraordinary top-level treasure hall.

Seeing this, Chu Xuan was not surprised. With the harvest of Jialou Palace, he was not interested in going to other places.

Anyway, with the avatars of tens of thousands of gods, his final harvest will definitely not be less.

Chu Xuan's eyes quickly fell on the system space, and the mysterious treasures with extraordinary origins were also presented in front of him.

"The harvest this time... is really good!"

Even if these treasures were not taken out of the system space, Chu Xuan could still feel the tyrannical and dangerous aura fluctuations. If they were placed in the outside world, these treasures would probably cause a bloodbath.

There is no doubt that the treasures that are eligible to be sealed in the last treasure house are basically not ordinary things.

Things like the Immortal Emperor Soul Crystal can only be regarded as "the most common" treasures.

However, even the "most common" treasures are of great help to Chu Xuan.

The further you get to the back, the more difficult it is to increase the power of the soul. If you use soul crystals to improve, the requirements for the quality of the soul crystals are getting higher and higher.

Now that Chu Xuan's soul power has reached the late stage of the Immortal Emperor Realm, and if he wants to make great progress, only this kind of Immortal Emperor-level soul crystal can play a very significant role.

This time, he obtained three Immortal Emperor-level soul crystals from the Jialou Palace, plus the soul crystals obtained from beheading Salman before, and he has already accumulated four Immortal Emperor-level soul crystals on hand, which is enough to make his soul power Metamorphosis again.

But having said that, among the many harvests this time, the Immortal Emperor-level soul crystal is really not conspicuous.

For example, the Horn of Death is an immortal emperor-level rare treasure, and its value alone is no less than the Wanhuo Furnace that Chu Xuan obtained from the Red Vulture Immortal Emperor.

However, unlike the Wanhuo furnace, the horn of death is a rare treasure of the death attribute, which can reawaken the dead and continue to fight.

It doesn't matter even if the soul disappears, it is similar to "spirituality".

However, it is much higher than the level of "Spiritualism". Even the strongest in the Immortal Emperor Realm, as long as the body is unharmed, can use the death horn to forcefully control it and become a puppet to fight for itself.

The only problem is that if you want to kill a strong person in the Immortal Emperor Realm, you must be unharmed, which is a bit too demanding.

But no matter what, the value of this horn of death is undeniable.

At least in Chu Xuan's view, this horn of death is no less than a real immortal emperor's weapon.

There are several other Immortal Emperor-level rare treasures like the Horn of Death.

But there is no real Immortal Emperor Tool.

But it is also understandable, after all, the Immortal Emperor's Artifact is indeed rare, and the powerhouses of the Nether Star Field are not good at forging, if there is an Immortal Emperor's Artifact, they would have already divided it up, and they would not store it in the treasury.

What really attracted Chu Xuan's attention the most was not the Immortal Emperor's weapon, the Soul Crystal, nor the strange treasures like the Horn of Death, but two other things!

One of them is a sword embryo.

The sword embryo is the embryo that has not been forged into a sword, or the part that condenses the essence of the sword body.

If Chu Xuan read it correctly, if this sword embryo is forged, it will most likely be an immortal emperor-level sword.

"It's even...much stronger than an ordinary Immortal Emperor-level sword!"

Looking at the mysterious sword embryo sealed in the system space, colorful rays of light shone, and wisps of sword intent flowed. If it hadn't been sealed in the system space, there might have been a supreme sword intent rising into the sky long ago.

That terrifying aura made even a strong person like Chu Xuan in the Immortal Emperor Realm faintly feel a little palpitation.

"What is the origin of this sword embryo?"

Chu Xuan's eyes narrowed slightly, and he could not help running the innate gossip map, mobilizing the power of fate and karma, and the magical golden light shone in his eyes, which fell on the mysterious sword embryo in an instant.

Following the mysterious causal line, it seemed as if he traveled through billions of time and space in an instant, and a picture also appeared in front of his eyes.

A peerless divine sword is being forged in the furnace, and all kinds of mysterious visions are earth-shattering.

Even if it has not yet become a sword, it has already made Xinghe tremble in advance.

Such an astonishing vision not only shocked countless strong men, but also provoked several supreme beings to fight for it, which in turn triggered a big battle.

In the end, the mysterious swordsmith passed away, and the forging of this peerless sword was terminated.

After changing hands several times, only one sword embryo remained, and finally fell into the hands of Brahma, one of the four great demon kings of the Nether Star Region, and was sealed in the treasure house by him as one of the rewards for dealing with the Ninth Star Region.

"I didn't expect such a history."

Chu Xuan lost his magical powers, and his eyes returned to normal. Looking at the sword embryo in front of him, a series of thoughts appeared in his mind instantly.

Although he has some proficiency in refining and casting, he is still far from casting an immortal emperor weapon by himself.

Even though this was already a half-forged sword embryo, Chu Xuan was still not very sure.

"Since we are not sure, why not smelt this sword embryo directly into the Kunwu sword. In this way, the quality of the Kunwu sword will definitely be greatly improved, and the probability of being promoted to the Immortal Emperor Weapon will also be greatly increased!"

With a thought, Chu Xuan quickly made a decision.

But this is not something that can be done in a short time, and Chu Xuan is not in a hurry.

Besides this mysterious sword embryo, another thing is a palm-sized puppet doll.

Chu Xuan raised his right hand, and the palm-sized puppet quickly appeared in his hand.

There wasn't any horrifying aura emerging, nor was there any brilliant and mysterious divine light blooming. It looked like an ordinary thing.

But Chu Xuan could keenly feel the extraordinaryness of this puppet doll, a ray of divine consciousness extended in, and soon various mysterious memories flooded into his mind.

This puppet doll is actually called a stand-in puppet, as the name suggests, it can be used to create a stand-in.

And this double is similar to a clone, but it is completely different from an ordinary clone. Not only can it preserve [-]% to [-]% of its current magical power, but it also has the effect of confusing the real.

Under normal circumstances, the deity and the clone are very easy to distinguish, but this stand-in puppet is not. Once it evolves, even the strong in the Immortal Emperor Realm will find it difficult to distinguish.

"This is a good baby, if you use it well..."

Chu Xuan seemed to have thought of something, a bright light flashed in his eyes, and a smile appeared on the corner of his mouth.