Until the end, it would transform into jade, evolving from Earth Vein Fire Reishi to Earth Vein Divine Jade Zhi, becoming a rare Spiritual Object in the world.

Of course... to transform into Earth Vein Divine Jade Zhi, it requires at least thirty thousand years and a certain fortuitous coincidence.

As for the Earth Vein Fire Reishi in front of Gu Yuan, its age is at most seven or eight thousand years.

However...

After all, it’s an unexpected harvest, so Gu Yuan naturally wouldn’t mind.

Additionally, he realized why that Fire Guardian Palace Demon attacked him earlier.

The answer is simple: because this area is its territory, and the Earth Vein Fire Reishi is its possession, or rather, the Fire Guardian Palace Demon is the Guardian Spirit Beast of the Earth Vein Fire Reishi.

Gu Yuan’s appearance made it mistakenly think he came to seize the Earth Vein Fire Reishi, thus it attacked Gu Yuan.

At this moment, Gu Yuan took out a jade knife and began carefully harvesting.

Harvesting Spirit Medicine often requires attention to detail and many taboos. For example, this Earth Vein Fire Reishi cannot come in contact with gold or iron objects, and can only be collected using Jade Artifacts or tools made of profound ice, otherwise, it may easily dissolve.

After harvesting, Gu Yuan placed it in a Wooden Box carefully.

Then, he continued his leisurely stroll...

As time passed moment by moment, Gu Yuan went from calm to a bit more restless.

It’s not because his mindset wasn’t strong enough, but because in this Earth Lung Fire Sea, the fire essence is too intense, even affecting his Divine Soul and mental state.

Looking around, everywhere was an intensely scorching red and white. An ordinary person would feel eye pain after just one glance, and if they looked a few more times, they might become blind.

Even Gu Yuan, staying in such a place for long, though protected by Magical Treasures and Divine Techniques, inevitably experienced some impact.

Hence why Ancestor Jinsha had reminded him multiple times to be cautious.

Without reaching the Yin Spirit Realm, entering the Earth Lung Fire Sea is indeed very dangerous.

Even a usual Yin God Giant couldn’t stay in the Earth Lung Fire Sea for long.

As for Gu Yuan... he’s an exception.

Swish swish swish... swish swish swish...

Suddenly, Gu Yuan heard a sound of air vibrating, and upon focusing, he saw a bird flying not far ahead... no, it should be a bat?

Calling it a bat doesn’t seem entirely right.

Yet this creature has two wings, resembling a bat’s meaty membrane, but with a pale color adorned with splendid red patterns.

Furthermore, sharp bone spikes grew on the membrane, emitting a chilling light.

This creature, bird-like yet not, bat-like yet not, wasn’t small, reaching over one person in height, with wings spanning nearly two zhang wide.

Its face resembled a bird, bat, and even a rat, exuding a fierce and menacing presence. 𝘧𝓇𝑒𝑒𝑤ℯ𝑏𝓃𝘰𝑣ℯ𝘭.𝘤ℴ𝘮

"Is this... the Yin Fire Bat Demon?!"

Gu Yuan’s expression changed slightly, instinctively hiding behind a large reef.

These days, Gu Yuan actually encountered quite a few Demons and Fire Essences, some as powerful as Yin God Giants.

Gu Yuan didn’t show fear and merely avoided them from a distance.

The reason he acted differently upon seeing the Yin Fire Bat Demon is because this type of Fire Demon is quite special.

Such Demons are typically social like Fire Crow groups but are more dangerous.

Because it’s said that these Yin Fire Bat Demons are born from underground Earth Fire Evil Qi, fused with Earth Fire Essence to create a special Fire Demon.

They’re nearly immune to Fire Element Divine Techniques and have incredibly fast flying speeds. Crucially, these Fire Demons possess an innate Divine Technique that can emit a unique sonic wave.

This sonic wave targets not just the physical body but more so the Divine Soul.

However, if it were just like this, Gu Yuan wouldn’t be particularly wary.

The problem is, the Yin Fire Bat Demon has a habit: when encountering an enemy, its first action isn’t to attack but to call others.

With just a loud call, other Yin Fire Bat Demons within a thousand-mile radius will be alerted and gather, forming a group to launch a frenzied assault on the enemy.

At that time, the innate Divine Technique of these Yin Fire Bat Demons merges, amplifying its power by thousands!

The more Yin Fire Bat Demons, the greater the power.

In Ancestor Jinsha’s Jade Scroll, there’s a recorded story that a Yang Spirit powerful being once entered the Earth Lung Fire Sea and encountered Yin Fire Bat Demons.

Due to underestimating the group of Yin Fire Bat Demons, initially, they didn’t pay attention to them.

But when the Yin Fire Bat Demons gathered thousands and released their innate sonic wave Divine Technique, the Yang Spirit powerful being’s body immediately softened into mud, even the invincible Yang Spirit froze in place, and subsequently drifted away with the wind, turning to dust.

Just this small story is enough to demonstrate the fearsome nature of Yin Fire Bat Demons.

Thus, these Fire Demons are best avoided.

After thinking it over, Gu Yuan decided to use the Dreamlike Grand Illusion Great Divine Techniques, layering another concealment, hiding his figure and reducing his presence.

Gu Yuan didn’t dare to provoke the Yin Fire Bat Demons, so it was best to avoid them.

However...

Since he discovered traces of Yin Fire Bat Demons, it indicated that there’s likely a group of them nearby.

Therefore, moving forward, he needs to be more cautious.

Sure enough, shortly after, Gu Yuan detected several sightings of Yin Fire Bat Demons.

Clearly, the front was close to the distance of the Yin Fire Bat Demon group.

Yet Gu Yuan felt a bit helpless because according to Ancestor Jinsha’s map, the Five Elements Celestial Iron was most likely up ahead.

In other words, to find the Five Elements Celestial Iron, he might have to confront that group of Yin Fire Bat Demons.

Though he has the Dreamlike Grand Illusion Great Divine Techniques for disguise, Yin Fire Bat Demons locate prey not by sight but by their own sonic waves.

Thus, the effectiveness of Gu Yuan’s Dreamlike Grand Illusion Great Divine Techniques might not be that strong.

Fortunately, Gu Yuan still has the Eternal Divine Escape, using its power of space to conceal himself can ensure more safety.

If he ever encounters any danger or powerful demons, he can promptly apply the Great Divine Techniques Escape Technique to save himself.

Thus, Gu Yuan kept controlling his breath, hiding his whereabouts, while cautiously observing his surroundings as he flew onward.

Chirp chirp chirp... chirp chirp chirp...

About half an hour later, strange, piercing cries reached Gu Yuan’s ears.

The sounds were odd, making one instinctively uncomfortable.

Fortunately, Gu Yuan now had multiple layers of protection externally, so these sounds were merely unpleasant to hear and had no other adverse effects.

Then, Gu Yuan cautiously flew and started searching for the Five Elements Celestial Iron.