The Arctic Ice Sheet is the coldest place in the entire Tianlan Star.

The temperature here is horribly low.

There are almost no living creatures on this ice field.

Not only that, but there was also a terrifying wind surging above this ice field, and this wind was so fierce that it seemed to be able to tear the sky.

Above the ice field, there are dense spatial cracks.

Once he fell into the spatial rift, even the peak powerhouse of the Earth Immortal would not dare to say that he could survive.

All of this Arctic Ice Sheet has always been known as a great culprit.

Xu Nian didn't expect that this Hades King would actually hit here.

I didn't expect that there was a tomb of a strong man in this extreme northern ice field.

Xu Nian looked at the cold wind around him, but there was no fluctuation in his eyes.

He turned his head to Murong Xue on the side and said, "You follow me closely, don't move around at will." ”

Murong Xue nodded, she knew that Xu Nian was the one who controlled the space.

These spatial cracks did not pose the slightest threat to him at all.

So Xu Nian asked her to follow him, completely out of protection for him.

"Hades, where is the mausoleum you found? Xu Nian asked the Hades King.

"Master, it's just ahead, but it's eight thousand meters underground. Hades said with big eyes.

"Let's go!"

Xu Nian directly grabbed the Hades King and flew towards the front with Murong Xue.

"It's right underground!" said the Immortal soon, pointing to an ice field.

Xu Nian's brows furrowed slightly, this ice field was covered with 10,000-year-old ice.

The ice is not so easy to break.

So it was not easy for them to get to the bottom of the mausoleum.

"Master, don't worry, I have a way to pierce through these dark ices. Hades said directly.

With that, a black flame erupted from his hand bones.

This black flame was extremely weird, because Xu Nian didn't feel the slightest temperature, and even felt an unprecedented cold.

The flames were like hellfire, and he felt a chill.

"This is the fire of Huangquan, Xu Nian, this skull you subdued is not simple, he may really be able to become a Hades-like existence in the future. The voice of the Heavenly Demon Venerable sounded in Xu Nian's mind.

Xu Nian was also surprised in his heart.

The fire of Huangquan, he had seen it in an ancient book.

This kind of flame only exists in hell.

In fact, the real existence of hell belongs to the same level of world as the three worlds of immortals, demons and demons, also known as the underworld.

But no one knows where this hell is.

Because hell is generally only accessible to the dead.

Xu Nian didn't know if a dead thing like Hades would fly to the underworld if it soared.

In other words, he should have ascended to the underworld.

Then Xu Nian saw the Hades trending towards the flames, shooting towards the 10,000-year-old Xuan Ice underground.

The moment those 10,000-year-old ice touched the flames, they melted.

Xu Nian was a little surprised, this Yellow Spring Fire actually had such a strong power.

So under the leadership of the Hades King, they soon came to eight thousand meters underground.

In this underground, Xu Nian saw an underground palace.

The surface of this dungeon was covered with powerful formations, and these formations exuded terrifying murderous intent.

As a top-grade array mage, Xu Nian could clearly feel the terrifyingness of these formations.

He was sure that these formations had surpassed the realm of the best array mages and reached the level of the immortal array.

It's just that these formations have not been touched, otherwise even if the Heavenly Demon Venerable is here, he may not be able to protect Xu Nian.

The luck of this Hades is very good, this underground palace has been destroyed.

He happened to break in through the gap in the formation, so he didn't touch the formation.

Xu Nian cautiously followed behind the Hades King and entered the underground palace.

Entering the underground palace, Xu Nian became more and more surprised.

On the walls of this underground palace, there are actually many immortal duels and immortal methods engraved.

These immortal methods are extremely profound, and they basically involve laws.

As long as Xu Nian goes deeper, he will feel a headache.

He was so scared that he didn't dare to watch it again.

This dungeon is not big, nor is it majestic.

It's basically the same as a normal palace.

And the furnishings of this underground palace are even simpler, except for these carvings on the surrounding walls, there is only a huge coffin in the center of the palace.

Around the coffin, there were still many bones.

Although these bones have been dead for thousands of years, Xu Nian can still be sure that these bones are all powerhouses above the Earth Immortal Realm before their deaths.

Xu Nian looked at the coffin in the center, and from the moment he stepped into this underground palace, he felt a chill in his back.

I always felt that there was a pair of eyes staring at him from beginning to end.

His spiritual sense could not penetrate this coffin, but he could feel the extremely dangerous aura emanating from this coffin.

Hades once said that the contents of this coffin are alive.

At this moment, Xu Nian also believed it a little.

Because what can make him feel dangerous cannot be a dead thing.

"Ask Heaven Senior, can you help me see what is in this coffin?" Xu Nian said to the Asking Heaven Demon Venerable.

"Boy, you want me to help you with everything, I'm about to become your servant. Asking the Heavenly Demon Venerable said angrily.

"Ask the heavens, senior, you can help, I feel that there is something staring at me in this coffin, you can help me see what is in this coffin. Xu Nian hurriedly begged.

"Okay, one last time. The voice of the Heavenly Demon Venerable sounded, and the next moment the immortal consciousness dispersed.

However, after waiting for a long time, Xu Nian didn't hear the voice of the Heavenly Demon Venerable.

"Ask the heavens, what's in this coffin?" Xu Nian couldn't help it, and asked Chuanyin.

"Boy, you're in big trouble, someone actually put this kind of thing here, this thing is still sleeping, once it awakens, it will be ruined. The voice of the Heavenly Demon Venerable sounded in Xu Nian's mind, but there was a tremor in his tone.

Xu Nian was stunned for a moment, and asked Heavenly Demon Venerable if he was afraid?

How is this possible?

Ask the Heavenly Demon Venerable is a master of the Demon Venerable level, what kind of existence can make him feel afraid, what kind of existence is that?

"Senior, what is in here?" Xu Nian became even more curious.

"Don't ask, you just need to know, don't go near it, once it wakes up, you Tianlan Star will be destroyed. Asking the Heavenly Demon Venerable's serious voice sounded.

Xu Nian was stunned for a moment, he had never seen the Heavenly Demon Venerable so serious.

"Then what should I do now?" Xu Nian was silent for a moment and asked.

"Leave this place, never come back, this thing is even more terrifying than the Void Zerg you control, even in the Three Realms of Immortals, Demons and Demons, it is something that everyone fears. The Heavenly Demon Venerable sounded.

Xu Nian was stunned.

This thing can make the Three Realms of Immortals, Demons and Demons fearful?

What's in it?

Why didn't you ask the Heavenly Demon Venerable to say it?

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