The lone wolf's words still made me ponder, and because I didn't find the entrance to the ancient road of the Yellow River for the time being, I was in a dilemma for a while.

Just when I was worried, Qin Yujie suddenly said: "I remember, Brother Feng, it seems that there is an ancient method of opening in the Heluo Diagram, which requires the use of specific items and rituals. ”

"Heluotu?" The three of us looked at her at the same time.

I immediately asked, "You mean Hetuluoshu?" ”

Qin Yujie nodded: "Yes, Heluotu is a secret book that has been passed down from generation to generation, and many ancient secret techniques and legends have been recorded in it, maybe we can find clues from it." ”

"And the original owner of the Hetu Luoshu is Dayu, and the Heluotu is a mysterious pattern that originated in ancient China."

"It is related to the Hetuluo book, which is an important pattern in the history of Chinese civilization and is known as the source of Chinese civilization"

"The Hetuluo Book is a system for people in ancient times to arrange the time, direction and seasons according to the stars, which contains a profound cosmic astrological code."

"Since Dayu can get the Hetuluo book and use it, maybe he will also add the content of the Hetuluo book when he prepares for his tomb."

My heart moved, Qin Yujie's statement is probably the most correct, and it seems that it is necessary to study it.

He looked at Qin Yujie with an excited expression: "Then let's quickly study the Heluo Diagram and see if we can find a way to open the mechanism." ”

Qin Yujie nodded in agreement, and began to recall and interpret the relevant content in the Heluo diagram, and they all gathered around her, nervously waiting for her discovery.

After some hard work to analyze the content of Heluotu, Qin Yujie finally found the relevant records.

She excitedly said, "Found it!" According to the Heluo diagram, in order to open such a mechanism, a gem called the 'Dragon Scale Stone' is required. ”

"Dragonscale Stone?" The three of us looked at each other, stumped for a moment.

Qin Yujie continued, "The Dragon Scale Stone is an extremely rare gemstone with mysterious powers. ”

"It is mentioned in the Heluo diagram that placing the dragon scale stone in the groove of the mechanism can open the ancient road to the tomb of Dayu."

"Where's the Dragonscale Stone?" I asked with some eagerness.

Qin Yujie shook her head: "Brother Feng, I don't know about this. ”

"The specific location of the dragon scale stone is not mentioned in the Heluo map, only its legend and use."

"According to records, the dragon scale stone is a kind of Lingbi stone, such as red snails, gray snails, yellow snails, etc."

"The original stone body of this stone species is scaly, with a strong intuitive feeling, and the stone body is regularly arranged with countless dragon body shapes, and the head and tail are complete."

"Only in a certain layer that is as round as a potato, the best dragon scale stone can reach the same fineness as chalcedony, and the hardness is between 6.5~7.3."

"Its texture is both standard and convex, and what is even more peculiar is that the direction of the textured scales on a stone may be in different directions, which is a must among strange stones."

After listening to Qin Yujie's introduction to the Dragon Scale Stone, we finally understood how scarce this thing was and how valuable it was.

Lei Zi touched his chin and said helplessly: "It seems that we have really encountered a problem this time, I am afraid that we have never even heard of such a thing as dragon scale stone, let alone found it." ”

The lone wolf also nodded in agreement: "That's true, our current clues are only recorded in the Heluo map, but we don't know anything about the specific location and how to obtain it." ”

I took a deep breath and tried to calm the anxiety in my heart, the secret of Dayu's tomb was right in front of me, but it was blocked by a gemstone, which was really frustrating.

"Brother Feng, even though I'm a treasure holder, I've seen too many heavenly and earthly treasures, but I've never seen a dragon scale stone."

After finishing speaking, Qin Yujie was also a little helpless, there was no way to find this thing at all.

Just as the four of us sighed in front of the stele, there was a commotion in the waterhole not far from the shore.

Lei Zi immediately turned to look, and I followed in the direction of the waterhole, for fear that the monster we had just repelled would attack again.

I wonder how many of these monsters are under this water? It's better to be careful.

But this time, there was a change in the center of the waterhole where the sound of water came, and no more four-legged monsters appeared.

Huge bubbles of air tumbled from the bottom of the water to the surface of the water, as if something big was breathing under the water.

Judging by the speed at which the bubble rolls and the size of the bubble, the size of the thing under the water must be at least five or six meters away.

"Leizi, be careful, there's something coming up under the water."

In the face of the sudden crisis, I didn't bother to keep my hands, which was undoubtedly increasing the danger for the four of us.

As he spoke, he hurriedly opened the Eight Treasures Ruyi Bag, and took out the Yin Yang Town Spirit Sword from it to prepare to deal with this unknown power.

The lone wolf's eyes also sharpened, and he clenched the assault rifle in his hand, ready to deal with possible dangers.

Lei Zi stood beside me in front of the left, holding Cao Hao's sword in his hand, vigilantly observing the dark blue pool.

Qin Yujie also seemed to notice the abnormality, and she said softly: "Brother Feng, we have to be careful, there seems to be something moving under this water, as if it is swimming to the surface of the water."

I nodded, motioning for everyone to stay vigilant, it's time for anyone to know that there's something in the water.

At this moment, the bubbles in the center of the waterhole suddenly became denser, as if something was rapidly approaching the surface of the water.

My heart began to beat faster as I watched the changes in the surface of the water, when suddenly, a huge black shadow emerged from the bottom of the water and rushed straight to the surface.

The four of us exclaimed at the same time, only to see a large oval object emerge from the water.

It turned out to be a huge monster head, covered with scaly textures, like dragon scales.

A huge aquatic creature that had never been seen before, its scales shimmering with a deep sheen, as if each piece contained mysterious powers.

The eyes shimmered with a deep red glow, as if they could see all things in the world.

Its mouth and nose are particularly prominent, and its nostrils are like two black holes, swallowing the breath of heaven and earth.

There is a fleshy crown-like bulge on the top of the head, and there are two flowing whiskers like catfish whiskers on the side of the giant mouth.

The dragon's whiskers are elegant, and they swing gently with its movements, adding a bit of mystery and majesty.

"Dragons? Is this a dragon? ”

Thunder Zi exclaimed, to be honest, I was also stunned, this monster's head really looks like a dragon.

Immediately after, Qin Yujie immediately shouted: "Brother Feng, this is not a real dragon, it should be a dragon."

As Qin Yujie's words fell, Jiaolong, who originally had only one head out of the water, moved.

A hiss resounded in the underwater underground space of the Yellow River, and the four of us eardrums were so hung and perforated.

The dragon, which was hiding in a waterhole, slowly floated up, and finally saw its body hidden in the water.

Visually measuring more than seven meters in length, the dragon's body was strong and powerful, with scales closely arranged and shimmering with a metallic luster.

Each scale seems to have been polished by the years, smooth and hard, exuding a faint chill.

The abdomen is a pale white color, which contrasts sharply with the dark scales on the back, making it even more vigorous and elegant.

The limbs appear strong and powerful, the forelimbs are short and flexible, and the hind limbs appear particularly stout, as if they can support the whole heaven and earth.

The claws are sharp and powerful, capable of easily tearing through prey, and on either side of the dragon's body grow huge bony plates of limbs.

When the dragon swam, its body rolled in the water, stirring up bursts of waves, and the pool of water fell head-on like a waterfall from above.

None of the four of us were spared, and we were all drenched in water, and we looked extremely embarrassed.

Its rush out of the pool is swift and graceful, like a silver lightning bolt shuttling through the water.

The majestic roar of the dragon is even more shocking, making people feel the powerful power contained in it.

I wiped a handful of water from my face, stared at the dragon that had completely surfaced, and couldn't help but curse: "You are so ugly, big lizard!" ”