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After all, Nan Shuishui had witnessed the combat power of the Holy Slayer Legion with her own eyes.

One could say she had never seen such a powerful army before.

With the Holy Slayer Legion guarding Dragon City, it could truly be called an impregnable fortress.

“It was just a small favor. Besides, the Sun-Moon Empire has really gone too far,” Su Yu said casually.

He himself was not really interested in war.

Just as Zhang Lexuan had said, when it came to the war between the three great empires and the Sun-Moon Empire, he had not intended to get involved at first.

But the Sun-Moon Empire’s policy of total annihilation was simply inhumane.

Even if people like Ye Xishui hadn’t committed atrocities, just based on the Sun-Moon Empire’s conduct, Su Yu would not sit by and watch.

A war between nations and pure slaughter were two very different things.

Su Yu never thought of himself as a good person, but he could not ignore such inhumane acts.

“You’re too modest, Young Master Su Yu. Your ‘small favor’ was the lifeline for the people of Dragon City,” Nan Shuishui beamed, her words of praise flowing out as if free of charge.

After all, Dragon City was the ancestral home of the Earth Dragon Sect. Su Yu’s actions had undoubtedly saved the entire city.

How could Nan Shuishui not be thrilled in her heart?

She said gratefully, “Young Master Su Yu, your generosity has saved all of Dragon City. I am endlessly grateful.”

“I have little to offer, but the Earth Dragon Sect possesses a secret land, passed down for over a thousand years. I am willing to offer this place as a token of gratitude. I hope Young Master Su Yu will not refuse.”

Perhaps worried that Su Yu might not care for it, Nan Shuishui hurriedly added, “Our Earth Dragon Sect ancestor once unearthed a mysterious ore in this secret land. The ore reacted to metal and carried a dense ice attribute.”

“According to that ancestor’s speculation, there should be an ice-attribute metal mine down there.”

“The Holy Slayer Palace under your command might find it useful, Young Master Su Yu.”

Nan Qiuyiu quickly chimed in, “That’s right, Su Yu! Our Holy Slayer Palace could definitely use it.”

They both looked as if they were afraid Su Yu would turn them down.

Su Yu couldn’t help but laugh. Under the expectant gaze of mother and daughter, he nodded slightly.

“Then I gratefully accept Sect Master Nan’s kindness.”

Nan Shuishui’s heart leaped with joy, and she smiled, “Then allow me to lead you there, Young Master Su Yu.”

“Please follow me.”

Nan Shuishui rose and led Su Yu and the others out of the hall.

They walked all the way to the deepest part of the Earth Dragon Sect’s back courtyard.

It was rather secluded, with nothing but an ordinary-looking well.

“Huh!”

As they approached the well, Xue Di, who had been silent by Su Yu’s side, let out a soft exclamation.

Within Su Yu’s spiritual sea, the Ice Empress soul spirit seemed to tremble as well.

Su Yu narrowed his eyes. He too felt a strong sense of attraction.

“Su Yu!”

Xue Di shot Su Yu a glance, her eyes hinting at something.

Su Yu nodded almost imperceptibly, saying nothing more.

At the edge of the well, Nan Shuishui stopped.

She turned to Su Yu, smiling, “Young Master Su Yu, here we are.”

“This is a cold spring, rich in spiritual energy and quite nourishing for a soul master’s body.”

“But only the sect masters of the Earth Dragon Sect know that beneath this cold spring, there is actually a hidden cave dwelling.”

“This cave was sealed off by our ancestors with special mechanisms, so it has never been discovered by outsiders.”

“Within this cave is the special metal I mentioned before.”

“However, the temperature inside is unbearably low. Even our ancestor, who was at the Title Douluo level, could only retrieve one piece of metal from it.”

“He could not stay inside for long. According to that ancestor’s guess, there might be even more precious ice-attribute metals deeper inside.”

“But throughout the generations, our sect members have never been able to develop it.”

“Rather than letting this treasure go to waste in our hands, it’s better to offer it to you—so it can be turned into a more powerful soul tool, contributing to the welfare of the continent.”

“Young Master Su Yu, you possess the rare Ultimate Ice martial soul, and the Ice God Hall are experts in manipulating ice. I believe you’ll have no problem surviving and mining these ores in the cave.”

Listening to Nan Shuishui’s words, Su Yu’s gaze fell upon the well.

Even he could not hide his excitement at this moment.

After all, no one knew better than he did what was hidden beneath this well.

“Sect Master Nan, thank you. I have a feeling that what’s down there will indeed be of great help to me,” Su Yu said.

“If it’s useful to you, Young Master Su Yu, then nothing could be better,” Nan Shuishui smiled.

Su Yu smiled and nodded, his gaze sweeping over the women around him, finally pausing on Xue Di.

“Dong’er, Mingli, Meng, Lexuan, Nannan, please wait here for a moment. Xue’er and I will go down and have a look.”

Di Mingli frowned as she was about to speak, but Su Yu continued, “The temperature under the cold spring is extremely low. Even you all would struggle to adapt for long.”

“Only Xue’er and I can move freely. Don’t worry, we’ll be back soon.”

Though their abilities were quite strong, the women present could not withstand the cold spring for long.

Even Zhang Lexuan, with her Ultimate Yin, might not be able to ignore it completely.

Ultimate Yin and Ultimate Ice, after all, were not the same.

“Alright, you two go ahead,” Zhang Lexuan said with a smile.

Only then did Di Mingli reluctantly nod.

Su Yu smiled, then turned to Xue Di. “Xue’er, let’s go.”

Xue Di nodded, following Su Yu, one after the other, as they entered the well.

As soon as they entered, a surge of cold struck them. But for Su Yu and Xue Di, this was nothing.

Without hesitation, the two quickly dove into the cold spring.

Within the spring, there was a pure ice-attribute elemental force. Su Yu could clearly sense the cold seeping into his body.

Compared to the Ice-Jade Cold Spring found in the Ice and Fire Yin Yang Well, this spring’s ice attribute was much weaker and not worth mentioning.

But precisely because of that, even ordinary soul masters could benefit from it.

The spring was deep, and the further down they went, the colder it became.

The light around them gradually dimmed. Su Yu and Xue Di had already descended nearly thirty meters.

At this depth, Su Yu sensed a unique cold current.

The temperature here was comparable to the Emerald Water that surrounded the Ice God Hall.

Xue Di nudged Su Yu and pointed deeper down.

Following the direction of the upwelling cold flow, they spotted what seemed to be a spring vent.

The cold current at the vent was tinged with a deep blue.

Su Yu and Xue Di exchanged a glance before swimming toward the vent.

The closer they got, the colder it became—almost reaching the temperature of the Ice-Jade Cold Spring in the Ice and Fire Yin Yang Well.

Xue Di’s beautiful eyes sparkled. She shook Su Yu excitedly, her face glowing with anticipation.

She had a feeling that whatever was inside was anything but ordinary.

Su Yu circled around, spreading his spiritual power in all directions.

Even in such extreme cold, Su Yu’s refined spiritual power was undeterred.

With his spiritual sense, Su Yu discovered a mechanism.

With a gentle tug, there was a clicking sound, and the stone wall suddenly began to move.

Under the watchful eyes of Su Yu and Xue Di, the wall trembled and revealed a narrow doorway.

A torrent of cold air rushed out from the opening, so intense that even Su Yu shivered and felt invigorated.

The doorway was open, shrouded in a strange force that blocked out the outer cold spring.

Without delay, Su Yu entered through the opening, with Xue Di right behind him.

Inside, they found a cavern.

It wasn’t large, but it was filled with unknown ores and the temperature was extremely low.

Su Yu spun his palm, releasing a flash of white light that instantly lit up the previously dim cave.

Inside, countless ice-blue crystals shimmered with a dreamlike glow, sparkling like a multitude of water crystals under the white light.

Xue Di’s beautiful eyes widened. In Su Yu’s spiritual sea, the Ice Empress could no longer contain herself and emerged directly.

“This… Is this the Extreme Ice Divine Crystal?” the Ice Empress exclaimed, her voice trembling with disbelief.

“Extreme Ice Divine Crystal? There’s actually Extreme Ice Divine Crystal here?”

“Extreme Ice Divine Crystal is the companion ore of the Myriad-Year Profound Ice Cavern. With so much of it here, there must be a Profound Ice Cavern nearby!”

“Heavens, how is this possible? There’s actually a Profound Ice Cavern outside the Extreme North?”

The Ice Empress seemed utterly shocked. As a soul spirit, she darted around the cavern almost madly.

The cold currents within the cavern seemed to have found their home, flocking toward the Ice Empress like swallows returning to their nest.

Xue Di took a deep breath, looking at the Extreme Ice Divine Crystals surrounded by deep blue ice mist, her eyes rippling with emotion.

“I never thought it would be Extreme Ice Divine Crystal. Su Yu, Bing’er is right.”

“With so much Extreme Ice Divine Crystal here, there must be a Profound Ice Cavern nearby.”

“This is a heaven-sent opportunity.”

Xue Di’s breath was a little heavy.

The Myriad-Year Profound Ice Cavern surely contained Profound Ice Marrow.

Even for her, Profound Ice Marrow was an extremely rare treasure.

If she had enough Profound Ice Marrow back then, she might have succeeded in forming dual soul cores and wouldn’t have been injured, losing her origin, and ultimately falling short before the seven-hundred-thousand-year tribulation.

She knew the Ice God Hall also had Profound Ice Marrow in storage, but it was limited.

Yet right before her, there might be a gigantic Profound Ice Cavern.

The quantity of Profound Ice Marrow inside could be unimaginable.

“Perhaps,” Su Yu nodded slightly, neither confirming nor denying.

He surveyed the cavern. It was not large—about thirty meters across.

But the amount of Extreme Ice Divine Crystal was considerable.

On the walls, ceiling, and even the floor, Extreme Ice Divine Crystals were everywhere.

Such dense deposits were extremely rare.

Extreme Ice Divine Crystal was a precious metal, suitable for crafting even ninth- or tenth-level soul tools’ core arrays.

Even in the era of Soul Land III, Extreme Ice Divine Crystal could be the main material for four-word battle armor.

As the companion metal of the Profound Ice Cavern, Extreme Ice Divine Crystal was top-tier rare metal.

It was no less valuable than the Emerald Crystal found under the Emerald Water.

Su Yu could entirely craft a new set of armor from it.

Even for someone of Su Yu’s power, armor made from Extreme Ice Divine Crystal would provide a significant boost.

Even just these crystals were enough to tempt Su Yu.

But these were just appetizers.

“Extreme Ice Divine Crystal is indeed good, but as you said, the Profound Ice Cavern is the real prize,” Su Yu said softly, his eyes shining.

Profound Ice Marrow was a truly rare treasure.

Even within the Ice God Hall, their stores were actually quite limited.

Profound Ice Marrow was, in some ways, comparable to the Life Gold.

Skydream Ice Silkworm was originally just a useless ice silkworm, but by relying on a Profound Ice Cavern, it became a million-year soul beast.

And the abundance of elemental power the Skydream Ice Silkworm possessed was enough to let the fierce beasts of the Star Dou Forest absorb it for ten thousand years.

Its value was self-evident.

And the Profound Ice Cavern before him, even conservatively estimated, was no worse than the one the Skydream Ice Silkworm once encountered.

“Xue’er, let’s go find the Profound Ice Cavern.”

This cavern was indeed the one discovered by the Earth Dragon Sect ancestor.

But clearly, the Profound Ice Cavern was not here.

There was only one possibility: it was even deeper beneath the well.

Xue Di nodded and followed Su Yu’s lead.

“I’m coming too!” The Ice Empress transformed into a beam of blue light, landing on Su Yu’s shoulder.

She became a palm-sized, emerald-green, miniature scorpion, flicking her slender tail. Her tiny, amber-jade eyes shone brightly.

Leaving the cave, Su Yu and Xue Di continued to dive, heading straight for the deepest part—the spring vent.

Soon, they reached the area around the vent. Here, the cold current was completely deep blue.

The temperature was even lower than the Emerald Water, now truly matching the Ice-Jade Cold Spring in the Ice and Fire Yin Yang Well—a temperature of the ultimate extreme.

At such ultra-low temperatures, it was no wonder even Title Douluo-level experts could not approach.

In the world today, aside from Su Yu and Xue Di, perhaps only Shui Lingguang and Hai Bodong, who had also attained Ultimate Ice, could come and go freely.

“It really is refreshing,” Su Yu said, enjoying the cold currents at the spring vent.

The temperature here had clearly reached the realm of Ultimate Ice.

And it was not just ordinary Ultimate Ice.

Even most Ultimate Ice soul masters would find their soul power struggling to circulate here.

But Su Yu was different.

Having received Heaven and Earth’s blessing from the Extreme North, he was naturally adaptable to any ice-attribute forbidden land.

The only one who could match him in this regard was, as an ice-snow spirit born from the Extreme North, Xue Di.

Even the Ice Empress could not compare to the two of them in this aspect.