The pit was very quiet, and Ye Feihua always maintained a state of concentration and vigilance.

After a pause, he raised his pickaxe again.

"Ding Ding Ding ......" He Shannon worked hard, but after a while, he dug down a meter deep.

"How?" Ye Feihua asked.

"It's a little bit of a feeling." He Shannon grinned.

"Dingding!" He Shannon raised his iron pickaxe and chiseled it twice.

"Huh!" At this moment, He Shannon suddenly let out a "huh".

Before the sound of "huh" fell, only a "bang" was heard, and the purple rock under the feet of He Shannon suddenly collapsed, revealing a black hole. The grass Shannon, along with the collapsing purple rock, immediately fell.

He Shannon reacted quickly, and the moment his body sank, he turned his fighting qi and flew straight up.

Almost at the same time, Ye Feihua subconsciously pounced, hooked his feet to the edge of the pit, threw himself into the pit, reached out, grabbed He Shannon's iron pickaxe stretched upward, and lifted it up.

However, there was another "bang", and the purple rock where Ye Feihua was standing also collapsed.

Ye Feihua also fell with the collapsed rock.

At the bottom of the pit, a circular black hole with a diameter of six meters appeared, and it was bottomless.

Ye Feihua and He Shannon were able to fly with air, so they were naturally not afraid of falling, and the two of them quickly got rid of the chaotic purple rocks, rushed out of the circular black hole, and flew towards it.

However, after inadvertently glancing down, Ye Feihua and He Shannon suddenly stopped their ascension and stopped in the void.

Through the circular opening at the bottom of the pit, a huge cavern can be seen below.

The collapsed rock fragments fell like raindrops and smashed into the cave, "rumbling" and it seemed that the whole cave was trembling.

Illuminated by a faint green glow, I saw the cavern below dusty.

When the dust cleared slightly, Ye Feihua and He Shannon saw countless prismatic crystals, densely packed, covering the surface at the bottom of the cave.

Ye Feihua and He Shannon only glanced at it and couldn't help but be stunned.

"Yuan Jing...... Top-grade Yuanjing! After half a ring, He Shannon shouted.

That's right, at the bottom of the cave below, the clusters of prismatic crystals are all high-grade Yuan Jing, the purest high-grade Yuan Jing without a trace of impurities, cluster after cluster, like a dense crystal jungle, towering on the surface of the cave bottom.

After another half a sound, Ye Feihua and He Shannon glanced at each other, and then slowly descended, passed through the circular hole at the bottom of the pit, and flew into the cave below.

Ye Feihua and He Shannon drifted down, and finally landed at the bottom of the cave.

After He Shannon landed on the ground, he was completely shocked when he looked at the clusters of prismatic Yuan Jing crystals that were one person tall all around.

"Oh my God! All of them are top-grade essences! He Shannon exclaimed.

Ye Feihua slowly looked around, also shocked.

When I got to this cave, I seemed to be much closer to the source of that strange energy fluctuation.

Ye Feihua stood in place for a while, then calmed down, suppressed the shock in his heart, and then followed the spiritual sense, bypassed the clusters of prismatic Yuan Jing crystals, walked to a place, and stopped.

He Shannon followed behind Ye Feihua.

Seeing Ye Feihua standing, He Shannon raised the corners of his eyebrows and asked, "Kitten, is this here?" ”

"That's right!" Ye Feihua nodded.

He Shannon stopped talking, and immediately raised his iron pickaxe and began digging.

Ye Feihua took three steps back and was once again on guard.

"I can clearly detect that the source is a meter underground. However, my intuition tells me that it is still not so easy to dig out. After He Shannon dug down for about half a meter, Ye Feihua suddenly said.

"I have that instinct too." He Shannon laughed.

As Ye Feihua and He Shannon expected, they clearly found that the source of that strange energy fluctuation was one meter underground, but when they dug down one meter deep, there was nothing, and the source of that strange energy fluctuation seemed to be still one meter underground.

There was no way, He Shannon had to shake his spirit and continue to dig down.

Soon, another two meters were dug down.

"I'm having a bad feeling right now, I'm afraid this place is going to collapse again." He Shannon grinned.

"Right? Then be careful. Ye Feihua also smiled.

Who knew that as soon as Ye Feihua's words fell, he only heard a "boom", and the rock under He Shannon's feet really collapsed, revealing a black hole.

This time, due to the large scope of the collapse, Ye Feihua fell together.

Ye Feihua and He Shannon had already been mentally prepared, and the two of them stopped falling after falling for only three meters.

When they looked down, Ye Feihua and He Shannon were stunned again.

Underneath is a huge cavern filled with a green glow.

Fragments of collapsed rock fell, rumbling the cavern.

In the flying dust, countless prismatic crystals were revealed, one after another, covering the surface of the cave bottom.

"Yuan Jing! It's all top-grade essence! After half a ring, He Shannon exclaimed.

Ye Feihua and He Shannon paused in the void for a moment, then floated down and landed at the bottom of the cave.

After coming to this cave, Ye Feihua and He Shannon clearly sensed that the source of that strange energy fluctuation was close at hand. The two of them ignored the surrounding Yuan Jing Forest, did not stop, followed the guidance of spiritual sense, bypassed the clusters of prismatic Yuan Jing crystals, walked straight to a certain position, and stood still.

"Dingding! Dingding ......"

In the cave, the crisp sound of digging sounded again.

He Shannon dug down a meter, then another meter.

When he dug three meters down, as He Shannon expected, there was a "boom", and the ground collapsed again, revealing a black hole.

In this way, Ye Feihua and He Shannon have been following the guidance of spiritual sense, one cave after another, going deeper into the ground, before and after, a total of nine natural caves have been excavated, each cave is full of prismatic high-grade Yuan Jing, the purest high-grade Yuan Jing.

Because there were too many yuan essences, in the end, Ye Feihua and He Shannon completely lost their feelings, and those yuan essences fell in the eyes of the two people, just like ordinary rocks, and they couldn't stir up any waves in the hearts of the two people.

When Ye Feihua and He Shannon excavated the tenth cave, the two of them finally found the source of that strange energy fluctuation.

I saw that in the dark and deep void, a ball of light the size of a bowl seemed to have life, gently rhythmic, changing into various shapes, sometimes like a hazy mist, sometimes like an ethereal breeze; Sometimes like a brilliant nebula, sometimes like a blazing sun, ever-changing and unpredictable. And, as the shape changed, the light cluster transformed into a variety of colors, sometimes emerald green, sometimes blue, sometimes like a rainbow, sometimes formless, as if disillusioned.

The strange energy that enveloped the entire Liuduzhai mining area was radiated by that one light cluster.

At this time, when I came closer, I felt that a strange energy fluctuation was sometimes soft, and the pulse was like water; Sometimes brutal, fierce and domineering.

Feeling that strange energy fluctuation up close, the hearts of Ye Feihua and He Shannon were completely filled with an inexplicable cordiality. The two of them looked at the light cluster, and their hearts lingered only full of emotion and warmth.

"Before, I always felt that this strange energy was extremely similar to the strange energy wrapped on the flying stone in the Black Dragon Pool, but now I confirm that it is not similar, but the same. It's just that this strange energy is too rich and full, and the strange energy wrapped on the flying stone outside the sky in the Black Dragon Pond can only be regarded as a part of this strange energy at best. In other words, this strange energy is an organic whole, and the strange energy wrapped on the flying stone outside the sky in the Black Dragon Pond is just a pitifully small part. After a long time, He Shannon said seriously.

Ye Feihua did not speak.

At this time, the information that he had been exposed to in the past was like an army of thousands of horses being reviewed, and it was rushing through Ye Feihua's mind.

"The Heart of the Yuan Spirit! This is the heart of the Yuan Spirit! After half a ring, Ye Feihua suddenly shouted.

"The Heart of the Yuan Spirit?" Hearing this term, He Shannon couldn't help but puff out his eyes.

"That's right! It is the heart of the Yuan Jing! Ye Feihua shouted loudly, and the surprise was beyond words.

Ye Feihua stared at the light cluster for a few moments, and then continued: "In a reading room on the ninth floor of the Huanyu Pavilion of the Nebula Library, I once borrowed an ancient book, which was written by an ancestor 60,000 years ago. On page 37 of the ancient book, there is a short paragraph, few crosses, which describes the heart of the Yuan Jing. Back then, the ancestor also saw the heart of the Yuan Jing, so he wrote it down as it was. The characteristics of this light cluster are exactly the same as those described by the ancestor, and the effect of the light cluster is exactly the same. ”

"The Heart of the Yuan Spirit! As soon as you hear the name, you know it's a good thing. He Shannon praised.