Jiang Lingxuan immediately asked, "What's her name?"

This question really stumped Ye Feng, who also didn't know the name of the spirit of the Seven-Story Demon Tower.

But the spirit of the Seven-Story Demon Tower said without hesitation, "I have a name, I'm called Gu Ling!"

"What a strange name." Jiang Lingxuan giggled.

Gu Ling glared at Jiang Lingxuan angrily: "What's strange about it! It's a very nice-sounding name!"

Jiang Lingxuan and Sun Muqing laughed even harder.

Xi Yao couldn't help but laugh.

Ye Feng looked at Gu Ling and asked, "Why did you suddenly run out here?"

Gu Ling turned around and looked into the distance, saying, "I can sense a very rare mineral over there called Thousand-Colored Iron, which can be used to repair my damage."

Upon hearing this, Ye Feng's face showed a look of great interest.

Thousand-pointed Iron Night Wind certainly knew that it was a very precious refining material with a very high density.

The density of Thousand-Man Iron is greater than that of gold; a fist-sized piece of Thousand-Man Iron can weigh tens of kilograms.

No matter what kind of weapon it is, as long as it contains Thousand-Armor Iron, its hardness will become very high.

While describing it as indestructible is a bit of an exaggeration, it's not far off.

Night Breeze then said, "Alright, let's go take a look together."

Ye Feng put away the seven-story demon tower and headed towards the direction Gu Ling had just indicated with Xi Yao, Jiang Lingxuan, and Sun Muqing.

Half an hour later, Ye Feng and the others arrived at a valley.

The valley was shrouded in a thick fog, which gave it a sharp and piercing feel.

"The fog contains many metal particles," Xi Yao warned.

Night Breeze nodded and raised his hand to cast a restriction.

With this barrier in place, the mist in the valley could no longer have much of an impact on Jiang Lingxuan and Sun Muqing.

Ye Feng and Xi Yao weren't afraid to begin with, so they didn't care at all.

The group headed toward the center of the valley, where the fog was thickest.

If there is Thousand-Pointed Iron in this valley, then it is most likely located in the center of the valley.

Upon arriving at the center of the valley, Ye Feng and the others spotted a cave.

Moreover, thick fog was continuously billowing out of the cave.

Without a doubt, the mist in the valley all comes from this cave; this is the source of the mist.

"The fog is thicker inside the cave, and the danger is greater."

"Mu Qing, Ling Xuan, you two stay with my mother in front of me. I'll go in alone," Ye Feng said.

Sun Muqing and Jiang Lingxuan knew that going with them would only be a burden to Ye Feng, so they didn't act recklessly and nodded, saying, "Okay, be careful."

"Contact us if anything happens," Jiang Lingxuan added.

Ye Feng entered the cave alone and walked deeper into it.

Meanwhile, the night wind surveyed the environment inside the cave.

The cave was very deep, but it was not dark inside, because there were large pieces of metal everywhere on the cave walls.

As light shines into the cave entrance, it reflects off the bright metal surfaces, making the cave well-lit.

"Star Iron, Amber Gold, Mithril..."

The more I looked at the night wind, the more uneasy I felt.

There are so many refining materials in this cave! It's a real treasure trove!

Without hesitation, Ye Feng immediately summoned his spirit sword Lei Ji and began to bombard the enemy with the Myriad Manifestations Heavenly Thunder Sword.

With a loud boom, pieces of material were peeled off the cave walls by the night wind and stored in his storage ring.

In just a short while, Ye Feng had collected over a hundred tons of materials.

Although hundreds of tons sounds exaggerated, because these refining materials have a very high density, there are actually not many of them. If they were piled together, they would only make a small pile.

Before we knew it, we had reached the end of the cave.

As the night wind cleared and the sky brightened, a glittering stone could be seen at the end of the cave.

This stone is not made of rock, but of metal, with a shimmering surface that looks as if tiny stars have gathered on its surface.

Without a doubt, this apple-sized piece of metal is the Thousand-Colored Iron that Gu Ling just mentioned!

Without hesitation, Ye Feng wielded the Thunder Sword, and with a single strike, he peeled the Thousand-Pointed Iron from the cave wall.

But just as Ye Feng was about to collect the Thousand-Colored Iron, a shimmering silver python suddenly burst from the ground, opened its blood-red maw, and lunged at Ye Feng.

Night Wind did not panic. After taking a step back, he directly swung his Thunderous Blade and slashed at the shimmering silver python.

This silver python was only a seventh-tier demon beast, and it was powerless against Ye Feng's attack. It was cut in two in one move.

The silver python broke off, but the blood flowing from the cut was not bright red; instead, it was silver, almost like flowing liquid metal.

"Having devoured the refining materials in this cave, this unknown python monster is itself an excellent refining material."

Night Wind chuckled and muttered to himself, then put the Thousand-Pointed Iron and the corpse of the dead Silver Python into his storage ring.

Then, the night wind came out of the cave.

Seeing Ye Feng return unharmed, Sun Muqing and Jiang Lingxuan both breathed a sigh of relief.

Xi Yao then asked, "How was the harvest?"

"Not bad."

The night breeze smiled and nodded.

The Thousand-Armor Iron was directly transported by the night wind into the Seven-Story Demon Tower. Gu Ling, who obtained the Thousand-Armor Iron, couldn't stop smiling, and her little face showed great satisfaction.

"I didn't expect you to collect one of the materials to repair me so quickly. You're quite efficient. It's definitely worth following you," Gu Ling said.

After leaving the valley, Ye Feng, Xi Yao, Sun Muqing, and Jiang Lingxuan continued along the same path towards the depths of the Heavenly Dragon Secret Realm.

The deeper they went, the greater the pressure they felt.

In this situation, flying has become very difficult, and in order to avoid being suddenly attacked by monsters.

Therefore, it is more appropriate to travel on the ground.

Before we knew it, a day and a night had passed.

Along the way, Ye Feng and his companions collected many rare and precious materials.

If converted into money, it would be worth at least several hundred billion.

After all, these things don't exist in the real world, and it wouldn't be an exaggeration to describe them as priceless treasures!

Ahead was a crater, and the temperature inside the crater had risen considerably.

Upon arriving here, the aura of the Heavenly Dragon that Ye Feng sensed became even stronger.

In other words, Ye Feng is definitely not far from the Tianlong corpse.

Perhaps, the remains of the Heavenly Dragon are located in the center of this crater!

"We must proceed with extreme caution from now on, as this is probably the most dangerous place in the entire Heavenly Dragon Secret Realm!" Ye Feng said.