The temperature in the cave was extremely high, and even Qin Yu's body was a little unbearable. Only after circulating the true energy to protect the body did Qin Yu feel a little better.

At first, Qin Yu thought this was a pulse point of the best fire-type spiritual vein, but later he found that it seemed that it was not.

Although the temperature here is extremely high, the concentration of fire energy is not strong.

With doubts, Qin Yu walked rapidly into the cave. The cave winded downward, extremely deep. In a moment, Qin Yu descended hundreds of miles!

However, this place is far from over.

continue!

Qin Yu's body swayed, like flowing light, sweeping rapidly along the cave.

One thousand miles!

Two thousand miles!

Three thousand miles!

...

At five thousand miles, Qin Yu finally felt something was wrong.

I heard from Huo Cheng that the depth of the cave was more than a thousand miles, but now he has dropped by five thousand miles, but except for the increase in the temperature of the rolling heat wave, he still found nothing.

Moreover, when we get here, many forks appear and the caves begin to become complicated.

Fortunately, there was no heat wave in the forks, otherwise he really didn't know what to do.

Six thousand miles!

Seven thousand miles!

...

Buzz!

When he arrived at Jiuqianli, when he turned a corner, the Longyuan Sword behind Qin Yu suddenly trembled slightly!

"What's going on?"

Qin Yu stopped, took off the Longyuan Sword, and "pleased" its restlessness.

Since the Longyuan Sword was successfully promoted to the top-grade spiritual weapon, the connection between him and the Longyuan Sword has become closer.

Although spiritual weapons cannot produce true spiritual intelligence, they can convey spiritual consciousness. After being with the master for a long time, they can even convey their wishes to the master!

Just now, the shaking of the Longyuan Sword conveyed a feeling of "excitement".

It seems that there is something it is "interested" here!

Qin Yu looked around and found that there seemed to be nothing else around except the slightly red rock walls.

However, the Dragon Abyss Sword will not cause abnormal movements for no reason.

After careful inspection, Qin Yu finally found a trace of abnormality in a tiny gap in a rock wall.

The gap is very small, but it reveals a misty purple and golden light!

Wow—

Qin Yu raised his sword and fell, and when he saw a piece of mud as a palm, he saw a piece of mud as big as a palm, appearing in front of him.

This mud ball is filled with a faint purple-gold light. Although it looks small, it makes people feel heavy, as if it is very heavy!

"Is it... Purple Gold Divine Clay?"

Qin Yu couldn't believe his eyes.

In the memory left to him by Senior Tian Yan, this kind of purple gold divine mud is something used to refine the rough embryo of the holy weapon!

In the past, most of these rare sacred objects could only be found in the cracks in the void. Where the boundary stone existed, Qin Yu would never have thought that such sacred objects would be found here.

Feeling the increasingly intense "excitement" of the Longyuan Sword, Qin Yu simply brought it over and had a "close contact" with this purple-gold mud ball!

Buzz!

As soon as the Longyuan Sword touched the purple gold divine mud, it started to tremble violently!

The mud ball also changed.

The purple and golden light on the mud actually "climbed" over the sword body of the Longyuan Sword!

Finally, all the light on the purple gold divine mud was transmitted to the Longyuan Sword.

Suddenly, the Longyuan Sword made a sharp buzzing sound, which was "brushing" and directly broke away from Qin Yu's hand's control, and shuttled back and forth in the cave like a happy bird!

It seems to be more spiritual.

At this time, Qin Yu's figure couldn't help but shake slightly!

He knew that with the help of the purple gold divine mud, the Longyuan Sword had successfully evolved into a spiritual weapon of the heaven!

Only the spiritual weapon of the heaven can spontaneous protection of the master without the master's command.

Only the Tongtian Spiritual Artifact can fly away from the master's control so "unscrupulously" and vent its excitement at this moment!

brush--

After turning the Longyuan Sword a few times, it seemed that it had finished "exhausting" and fell directly into the scabbard behind Qin Yu.

Qin Yu shook his head and smiled at the corner of his mouth.

This time I entered the Fentian Ridge and had not found the fire spirit, I first found a piece of purple gold divine mud, which allowed the Longyuan Sword to evolve successfully, which was worth the trip!

The word "Tongtian" is not simple, second only to the holy weapon, which is enough to make the powerful emperors extremely envious.

Hundreds of top-quality spiritual weapons are not as good as one of the spiritual weapons to the heaven!

At this time, Qin Yu turned his gaze on the purple gold divine mud that had lost its light. At this moment, the purple gold divine mud had lost its "divine light" and had turned into an ordinary black mud ball, cracking.

A hint of regret flashed through his eyes, and Qin Yu sighed slightly.

The purple gold divine mud is extremely precious and is the raw material used to refine the rough embryo of the holy weapon. It is indeed a waste to absorb the essence of divine power by the Longyuan Sword.

However, for Qin Yu at this moment, the evolution of the Longyuan Sword is undoubtedly the best choice.

Even if he possesses purple gold divine mud, he does not have the ability to find other materials to refine holy weapons. Besides, he has no time now.

On the contrary, the Longyuan Sword evolved into a Tongtian Spiritual Artifact, which made it obvious that his strength improved.

After stopping for a while, Qin Yu did not continue to stop and rushed towards the deeper part of the cave!

His real purpose here is not to evolve the Dragon Abyss Sword.

...

Ten thousand miles!

Qin Yu had already arrived ten thousand miles underground, and the cave was still winding downward, unfathomable.

It was just the heat wave that made Qin Yu feel a little bit difficult.

At this time, after turning another big bend, Qin Yu's figure suddenly stopped in place!

The cave has come to an end.

At this moment, his eyes suddenly became extremely wide, and this place was a huge underground pit!

Qin Yu's eyes instantly condensed on the huge fiery red body in the middle of the deep pit.

A fire dragon!

How could it be a fire dragon? Qin Yu frowned.

He knew that fire spirit, like thunder spirit and wood spirit, could transform into shape, but what he did not expect was that fire spirit would be so huge.

This fire dragon is hundreds of feet tall!

You know, whether it is the Lei Ling he encountered in the forbidden area of ​​the Thunder Pool or the Wood Spirit he encountered in Danhua Lingshan, they are only a few feet high at most.

Is this big guy in front of me really a fire spirit?

Qin Yu couldn't help but feel numb. Even if such a huge dragon was transformed by the fire spirit, he would probably not be his opponent!

At this time, a scene that even more frightened happened.

The originally closed eyes of this fire dragon that was dormant was slightly opened, and he looked at Qin Yu indifferently, and then closed it again.

It seemed as if in its eyes, Qin Yu and an ant were not worthy of its interest.

At this time, Qin Yu's eyes fell on another part of the deep pit, where there were a large pile of fire red crystals, like fire diamonds, crystal clear and transparent.

"Fire Source Divine Crystal?"

Qin Yu walked in and was shocked.

At this time, he suddenly became clever and could pull out the fire source divine crystal like feces. The ordinary fire spirit could not do it!

Unless... it is the fire seed of the ancestor of all fires!

Suddenly, Qin Yu turned his head suddenly!

At some point, the fire dragon had opened its eyes again, and its cold eyes "examined" Qin Yu, who was coveting its "stool".

At this moment, the eyes met again, and a trace of cold light had appeared in the Fire Dragon's eyes!
Chapter completed!