Elder Aluminum said, "When you reach that state, your body will be extremely clear inside and outside. No matter kinetic energy, thermal energy, electrical energy or ethereal spiritual power, it will not be stagnant. It will only pass through it like sunlight penetrating crystal, leaving no trace behind."

Not the slightest trace.”

"Sunshine?" Tie Yan opened his eyes and asked curiously, "Is it the light emitted by the legendary sun?"

"Yes, it is the light of the sun. It is very comfortable to bathe in the sun during the day."

Elder Aluminum narrowed his eyes and recalled for a moment, then looked down at him with a longing expression on his face and said with a smile, "I forgot that your generation has never seen the sun."

Tie Yan asked again: "What about you, Grandpa Aluminum? Have you seen him?"

Elder Aluminum raised his head slightly and recalled: "Of course I have seen it. At that time, I was about the same age as you, but since the arrival of the Demon Brain Clan..."

He shook his head, patted Tie Yan on the back and said with a smile: "Okay, okay, it's been long enough. We should go back, otherwise your mother will have to come find her again."

After saying that, he walked slowly towards the depths of the cave on crutches.

"Yeah, yeah."

Tie Yan nodded and followed the old man out of here.

As the two people left, the stone tablet with green light patterns slowly returned to its original dark appearance.

Deep in the cave.

As Tie Yan and Elder Aluminum walked slowly for several hundred meters, the long and continuous underground cave became wider and brighter, and its scenery gradually emerged.

Looking around, from the top of the cave rock with a height of 100 meters to the dry rock walls with a distance of more than 200 meters on both sides, there are thousands of pieces of uranium ore that are densely inlaid with green fluorescence at all times.

Under the rays of faint green light, dust and mist swirled around the cave.

In this mist, infinite nuclear radiation passes through all the time.

If there was a Geiger counter here, it would be overwhelmed by the excessive radiation here.

Therefore, ordinary carbon-based flesh and blood life here will definitely not survive for a minute.

But for the lead apes, these nuclear radiations are their source of life, the 'oxygen' they rely on to survive.

"Whoosh, whoosh, whoosh-"

The sound of water became more intense.

The two walked another few kilometers and came to a gentle slope of volcanic rock.

Under the gray rock slope is an underground river that flows endlessly.

Through the green light of uranium mines scattered all over the top of the cave above, we can look all the way to the end of the dark river in the direction of its flow.

Faintly a few hundred meters away, you can clearly see a section of the waterfall that is tens of meters wide.

"Okay, hold my hand."

Elder Aluminum stretched out his big hand and told Tie Yan to hold it tightly.

Then, his old body suddenly glowed with brilliance.

Buzz——

With the strong light and huge amount of radiation, the arms, neck, head, face, and ankles of Elder Aluminum, who was wearing coarse linen clothes and exposed to the air, instantly became clear and transparent.

At the same time, a powerful force emerged from his body and wrapped the two people tightly.

stop--

Gravity suddenly failed at this moment.

Elder Aluminum, who looked like a luminous crystal, grabbed Tie Yan and rose into the air, flying quickly through the air towards the underground waterfall a few hundred meters away.

This chapter is not over yet, please click on the next page to continue reading the exciting content! It only takes a few seconds.

The two of them crossed this underground river and flew over the waterfall.

After arriving here, the rock walls on both sides suddenly widen.

From being only a hundred meters apart, it suddenly became thousands of meters away at a glance.

“Whoa, whoa, whoa!

"

The sound of water splashing here is also countless times louder and noisier than before.

The two of them looked down.

The waterfall only dropped more than two hundred meters before a large cloud of water mist exploded and crashed into an even larger underground river that was roaring and roaring all the time.

Without stopping for too long, Elder Aluminum grasped Tie Yan's little hand and flew forward.

Huhuhu——

This huge underground cavity stores a large amount of air, so as the old man flies through the air, he also rolls up and hits circles of white sound barrier clouds.

After more than ten seconds, the two of them reached the end of the river, which was getting wider and wider.

At the end of the river, there is an underground waterfall with a width of 8,000 meters.

A super waterfall that exists in a giant crustal cavity tens of thousands of meters below sea level.

Although I mentioned that I had seen it secretly, when I saw this waterfall again, Tie Yan still couldn't help but marvel in his heart:

“What a huge waterfall!”

After being amazed, I passed the waterfall and looked down to the extreme. I saw a giant funnel-shaped waterway with a slope of nearly 90 degrees.

Looking down along this waterway, I can't even see the bottom at a glance.

It was pitch black, no matter how many kilometers or tens of thousands of meters it was.

"Are you ready?"

Elder Aluminum smiled slightly and looked at Tie Yan who was standing next to him and said, "Get ready, let's dance."

"Hu~hu~"

Tie Yan took two deep breaths, and shouted as if to embolden himself, "Ready!"

"good."

The old man chuckled, and then he grabbed the young man and threw him headfirst, and he quickly fell towards the endless abyss below.

"Ah ah ah ah ah!

"

Accompanied by the hoarse screams of the young man, the two of them fell straight down almost parallel to the water of the waterfall at extremely fast speeds.

Boom boom boom boom!

In a huge dark underground cave, a huge waterfall with a thickness of eight thousand meters rumbles straight into the bottomless abyss, carrying the momentum of destroying everything.

Tie Yan, who had completely entered a state of weightlessness, felt that his beating heart was about to jump out of his chest.

But apart from screaming as hard as he could, he had no way to relieve the panic in his heart.

three minutes.

The two fell at supersonic speed for three minutes.

Finally, Tie Yan saw the bottom of this abyss-like wide waterway.

There, there are thousands of "stars" that are constantly changing their positions and twinkling endlessly, just like the stars in the night sky.

Such a strange scene, at first glance, it seems as if the sky is below.

At the same time, there were also bursts of rumbling explosions that were comparable to the 8,000-meter waterfall.

It's surprising and scary, what exactly exists below.

"boom!"

Elder Aluminum slowed down in time, grabbed Tie Yan and instantly broke away from the water, jumped into the 'sky' where stars were dotted with lights, and glided all the way down along a huge curved parabola.

There were bursts of thunder in my ears.

The old man led the young man through the thick black clouds, easily dodging thunder and lightning. After occasionally crashing with a few closer thunder and lightning, he glided all the way down towards the endless boiling sea below.

At this time, the specific scene at the end of the abyss at the bottom of the waterfall gradually emerged.

This is a vast and vast underground ocean that is closely adjacent to the hot mantle.

Boom!

Boom!

Rumble!

Thick black clouds piled up on top of the boiling sea, and angry thunder exploded all the time.

It turned out that the starlight that Elder Aluminum and Tieyan had just seen flying down the waterfall in the distance was actually the thunder that was constantly flashing in the sky in the endless ocean in the huge cavity deep in the earth's crust.

Caused by.

And when the two of them glided down through the thunderclouds like arrows, they saw an extremely magnificent natural scene.
To be continued...