The two came to the boulder.

Lu Yun circled the stone twice.

However, the stone didn't look special. Lu Yun tested it with Imperial Qi and found nothing.

He looked up at Long Ying, waiting for her answer.

Long Ying remained silent, but gently moved the stone away.

A hole with a diameter of only half a foot suddenly appeared in front of the two of them.

The two looked at each other, and Lu Yun jumped in without saying anything.

The surroundings were pitch black and there was no sound. Lu Yun relied on his extraordinary eyesight to barely be able to see the surrounding scenery.

It's just a hollowed-out mountain, nothing special about it.

Lu Yun controlled his body and kept falling like this. It wasn't until a full hour later that the two of them landed.

Lu Yun stretched out his finger and instantly lit up the underworld fire.

"It's really funny. I didn't expect that one day, Hell Fire would be used for lighting."

The ground beneath my feet was black, and no footprints were visible.

Looking around, Lu Yun found himself standing on the edge of a passage.

This passage is very spacious and can accommodate several people walking side by side at the same time.

The walls of the passage are full of traces of manual excavation and stones left behind.

Lu Yun picked up a stone and looked through the underworld fire. There was no shadow of the Origin Stone inside.

"Did I guess wrong?" Lu Yun couldn't help but frown.

The stone in my hand is completely different from the bluestone I have seen before, and has no similarity at all.

"Are you sure this was once an Originium vein?" Lu Yun couldn't help but ask.

"That's right, I followed Mr. Yuwen Nian and came here with Mr. Pluto." Long Ying replied affirmatively.

In Long Yan's eyes, it seemed that the scene where there were many miners appeared again. Two people passed by her carrying a large frame together.

"By the way, I remembered it. If you continue on this road, there should be a large warehouse." Long Yan said in surprise: "If we can find more source stones, we can use an ancient magic circle.

, come and help you find someone."

Long Ying's words were like a bolt from the blue, plucking Lu Yun's heartstrings.

"Then why don't you leave quickly?"

After that, he was the first to run towards the passage.

But after running for a long time, Lu Yun could not help but doubt himself. Whether it was behind him or in front of him, the scenery he saw was exactly the same, without any changes.

"Are you sure this is here?"

"It's not wrong, I remember it very clearly." Long Ying said: "I walked with Master Yu Wennian and Pluto for half a month."

Walk for half a month?

No matter how slow you walk, half a month is still a long way.

Finally, when they reached noon on the third day, there was a fork in the road ahead.

Long Ying came closer and checked the conditions of the two roads respectively.

"This way."

Long Ying rushed directly into the passage on the far right without even thinking about it.

"Do you remember this road?" Lu Yun asked curiously.

"No." Long Ying said coldly: "I just noticed an unusual smell here."

What would be unusual about an abandoned mineral vein?

Lu Yun expressed doubts about Long Ying's words.

Long Ying seemed to have noticed Lu Yun's doubts, and then said: "I have a feeling that your friend seems to be deep in this vein."

"Chu Yao?"

Lu Yun was shocked.

However, Long Ying slowly shook his head.

"Is it... Brother Big Cannon?"

This time, Long Ying didn't express anything.

Lu Yun was overjoyed. It would be great if he could find the Dragon Cannon here.

Let's not talk about anything else, with such a powerful help as Long Cannon, it would be really convenient for him to act in the underworld.

What's more, Long Canao knows a lot about the underworld and is hundreds of times better than him.

When he thought of this, Lu Yun couldn't help but speed up again.

"Brother Big Pao, Brother Big Pao, you came to the underworld to find the Pluto Sword, didn't it fall into the hands of the third prince? If you had let me find you earlier, I would definitely help you get it back!"

Lu Yun has this confidence. As long as he joins forces with Long Dapao, they will definitely be an invincible combination in the underworld.

At least that's the case on the surface.

At this time, Lu Yun could no longer contain his excitement and shouted towards the depths of the passage: "Brother Big Pao! I'm here to find you!"

After another two full days, the two finally arrived at the end of the passage.

"how so?"

Lu Yun looked at the stone wall in front of him, constantly looking for the mechanism.

Long Ying also walked forward curiously, frowning.

"Am I wrong?" She had doubts about her judgment: "You step back, and I will try to open the passage."

"I'll do it!"

Lu Yun exploded instantly and punched the stone wall.

"Crash!"

Only some gravel fell from the hard stone wall, and not much damage was done.

“The rocks here are really hard!”

However, he did not give up. With the help of imperial energy, Lu Yun transformed.

When he was done, he was blasted away with a series of fists.

Sure enough, the stone wall was vulnerable to heavy blows. In just the blink of an eye, it was blown away by Lu Yun for more than ten feet.

It's just that, there is no exit in sight.

Immediately, the hell fire between his fingers suddenly grew stronger, and once again merged with the imperial energy and blasted towards the stone wall.

"Crash!"

They are everywhere at any time, almost blocking the passage.

After the dust and smoke passed, a gust of wind blew across their faces.

Lu Yun was overjoyed, glanced at Long Ying, and hurriedly began to clean up the gravel in the passage.

However, there was no trace of joy on Long Ying's face, instead he frowned.

"No! No!"

"What's wrong? I can already feel Brother Big Pao's aura now!" Lu Yun said excitedly.

"It's not the breath that's wrong, it's the soul."

"Don't worry about it for now, we'll talk about it after we find Brother Big Cannon."

A passage was cleared, and a dark space appeared below.

The dark wind blew out of the small hole, making a roaring sound.

"Who can tell me how deep the mineral vein is in this abandoned land?" Lu Yun said displeased.

"I'll go first this time, you follow me closely."

Long Ying jumped down first, and then transformed into a giant dragon, with golden light shining all over his body.

Lu Yun jumped down and landed directly on Long Ying's head.

With the light emanating from Long Ying's body, Lu Yun could roughly see the appearance of this place.

Mine.

A huge mine.

It's many times larger than the mine under Lord Piro's lighthouse.
To be continued...