The power of the Evil Heart Worm lies in its ability to hunt stealthily, and once it manifests, it is not a cause for concern.

Wu Aotian was already at the strength of the Heavenly Spirit Dual Realm at this time, and if he killed a few Evil Heart Demon Worms that had not even reached the Ninth Order Demonic Beast, he would naturally be able to capture them.

The seven evil heart demon insects that exposed their whereabouts quickly fled in all directions, but they couldn't escape the pursuit of the heart sword, and they were easily killed one by one.

Wu Aotian didn't rush to deal with the seven dead evil heart demon insects, but directly put their corpses into the Void Ring and left the Blackwater Mountain Range directly.

Outside the Blackwater Mountain Range, Wu Aotian landed on a tall mountain peak, took out the corpses of the seven dead evil heart demon insects, and began to dispose of those corpses according to Lily's instructions.

The single thorn that the Evil Heart Worm attacked was removed, and then the skin of each Evil Heart Worm was also peeled off and soaked in a special potion that had been prepared long ago.

According to Lily, the skin needed to be soaked in this special potion for three days before it could be used to refine the artifact.

Wu Aotian was not in a hurry to go back, he cultivated in this place for three days, and the skin of the evil heart demon insect was also soaked, because all the materials needed for refining, Wu Aotian had already prepared, so he immediately started refining.

Refining this spirit artifact stealth robe was not too complicated, and even Wu Aotian didn't need to intervene to help at all, so he directly got the finished product.

This is a cyan robe, the color is about the same as the skin color of the evil heart demon worm, it looks like a very ordinary robe, and it is not much different from ordinary robes.

"There is a formation engraved in this robe, after you carry out blood refining, you can wear it on your body, and fill the aura required by the formation inside on weekdays, and when you use it, you can be directly invisible, but the time for this robe to be invisible is also limited, and it can't be invisible all the time, it can last for about two hours. ”

"Two hours, that's enough, after all, stealth is only to sneak in or escape, especially to attack, it only takes a moment's effort, once the battle begins, natural stealth can no longer work. ”

"Yes, in addition, you need to pay attention to the fact that although this invisibility robe can help you hide your body, your aura will still expose your existence, so when you use the stealth robe, it is best to take the Breath Pill, or you use other means to restrain your breath, the greater the difference in strength, the higher the chance of you being discovered, because the stronger the spiritual cultivator, the higher the perception of aura fluctuations, even the slightest movement of aura, they can feel it. ”

For Lily's admonition, Wu Aotian thought it was true, this stealth robe and stealth weapons were all good things to attack quietly, but it didn't mean that after having these two spiritual weapons, they would be obscene and invincible, and when they encountered powerful spiritual cultivators, these two spiritual weapons might not be of any use.

After completing the refining of the stealth robe, Wu Aotian decided to go to the extreme north to find the ice crystal shark that may or may not exist, and seize its magic crystal to Qiu to help him recover from his injuries, although Qiu's true power has not yet been shown, but Wu Aotian has an intuition, that is, after Qiu has fully recovered, the power of the Eight Desolations Gathering Spirit Ding, I am afraid that it will far exceed that of the Fire God and Lily.

After many days of flying, Wu Aotian finally reached the extreme north, according to Mei Xuemeng's account, that peculiar area was located above the sea, between the glaciers, so Wu Aotian flew along the sea area on the edge of the ice field to the outside, and the eagle eye was also put into the sky.

It took three days for Wu Aotian to finally find that strange water, the reason why he was able to discover this water area in three days should be more due to Eagle Eye, after Eagle Eye lifted off, it can widen and lengthen Wu Aotian's field of vision many times, and that blue water, in the white glacier, is so eye-catching.

Wu Aotian floated on the blue waters, looking down a little strangely, the surrounding sea was full of thick ice, but this area alone was not visible at all, and there was a curling mist on the water surface, which looked like the mist on the hot spring.

Mei Xuemeng mentioned that the temperature under this water is extremely cold, even many spiritual weapons can't stop the cold temperature, and even down, even the spiritual weapons will become brittle and even scrapped because of this extremely cold temperature, so even Mei Xuemeng, a strong person of the Heavenly Spirit Great Perfection, has no way to go down to the deepest part of this sea.

Before coming here, Wu Aotian had already discussed with Lily, if he wanted to go down to the deepest depths to find the ice crystal beast, maybe he could only rely on the Tower of Heavenly Fire to go down, and he also needed to rely on the temperature of Lily's Heavenly Fire, otherwise, I am afraid that the Tower of Heavenly Fire would be difficult to resist the low temperature, and Wu Aotian in it would probably be frozen into popsicles.

Wu Aotian released the Tower of Heavenly Fire, and the Tower of Heavenly Fire quickly grew larger, and Wu Aotian entered it, and at the same time released the God of Fire inside the Tower of Heavenly Fire.

Heavenly Fire and Earthcore Fire, two extremely blazing special flames, Wu Aotian believes that with the two of them, it should be enough to resist the super cold, after all, Heavenly Fire and Earthcore Fire are both super hot existences.

The Tower of Heavenly Fire entered the water and began to sink, and Wu Aotian sat cross-legged at the bottom of the Tower of Heavenly Fire, releasing his own perception and began to search the surroundings.

The speed at which the Tower of Heavenly Fire descended was not very fast, Wu Aotian could clearly feel that the temperature in the tower began to drop rapidly, and even began to become cold, Wu Aotian was secretly surprised in his heart, such a place was really strange.

Heavenly Fire Lily suddenly moved, and the heavenly fire suddenly expanded, and the flames were like a golden wave, instantly spreading along the inside of the Heavenly Fire Tower, and soon attached to the entire inner wall of the Heavenly Fire Tower.

The flames emitted scorching heat, quickly isolating the cold outside from the flames, and the heat of the flames spread to the Tower of Heavenly Fire, which also enhanced the Tower of Heavenly Fire's ability to resist the cold outside.

As the depth of the dive became higher and higher, the degree of flame burning became stronger and stronger, although Wu Aotian had already known this kind of scene, but the real immersion was a very different feeling.

The time of descent is very long, Wu Aotian estimates that he is now tens of thousands of meters in the deep sea, according to the water pressure, now the Heavenly Fire Tower is under extremely huge water pressure, and even through the raging flames, Wu Aotian can still feel the slightest cold, like a needle penetrating in.

The god of fire also shot at the same time, and the flames came out directly from the muzzle of the desert eagle, forming a circle again, wrapping Wu Aotian in it, the double protection of the heavenly fire and the fire in the center of the earth, Wu Aotian finally no longer felt any cold, but his heart was still hanging, at such a depth, if something happened to the tower of heavenly fire, it was estimated that he would be crushed into pieces by the huge water pressure in an instant.

Suddenly, Lily's voice rang out: "Found a living form, maybe it is the ice crystal shark we are looking for......"

Wu Aotian's spirit perked up: "Found it? That's great, if we sink like this, it is estimated that we will all become popsicles, I am very strange, at such a temperature, what kind of life can survive in such an environment, and how can the water here not freeze?"

Lily replied in a faint voice: "The creatures that survive in all kinds of complex and harsh illusion realms are not born to resist these harsh environments, but in the inheritance of life from generation to generation, they continue to evolve, and finally adapt to this environment, just like your palace master said, the ancient wasteland is shrouded in poisonous mist, but the demonic beasts that survive there are not affected at all, even ordinary animals are not affected, this is the result of their evolution, and this ice crystal shark is obviously the same......

Wu Aotian naturally agrees with what Lily said, as a visitor to the earth, Darwin's theory of evolution, he is still very clear, natural selection of the fittest to survive, and those who survive are able to adapt to the new environment.

The Tower of Heavenly Fire quickly approached the lifeform at the bottom of the sea, but Wu Aotian suddenly discovered a problem.

I can't seem to make a move......

At such a deep seabed, there is no way for me to get out, and even the spirit weapon does not dare to release it, if it is released, it is estimated that it will be directly frozen and cracked, no matter how hard the metal is at such a low temperature, it is extremely fragile, even if it is the Tower of Heavenly Fire, it also relies on the strong high temperature of Heavenly Fire to maintain the temperature on the surface of the Tower of Heavenly Fire is not too low, so that it will not collapse......

The Vulcan was silent.

Lily was silent as well.

At such a low temperature, the two people don't dare to make any mistakes, after all, the power of nature is often the most terrifying, and the attacks of the two people are also fire attribute attacks, but at such low temperatures, are fire attribute attacks useful?

"Isn't it okay to lead it up, as long as you have a certain amount of space, then the pressure is less and the temperature is a little higher, you can shoot." Qiu's voice sounded in Wu Aotian's mind, and there was already excitement in his voice that could not be concealed, after all, he had been waiting for the Yin and Cold things for too long, and now there was finally hope, although it was not the most domineering ice spirit, but it was also an extremely rare thing.

At this time, Wu Aotian and the others finally officially met with the life that lived in such a strange place.

Although Wu Aotian had never seen an ice crystal shark before, the first time he "saw" this demonic beast, Wu Aotian was sure that this was the ice crystal shark.

It has a shark-like head, but its body is like a crystal that is as clear as jade, and the whole body presents a strange beauty, even the sharp teeth have a crystal-like luster.