Qin Xuan looked at the fish's eyes seriously, his voice could not be refused, and there was a hint of excitement.

And this sudden request also made Yu Qingqing couldn't help but be stunned, and looked at him puzzled.

"My blood? What do you mean? ”

She looked at Qin Xuan, although this request was a little unreasonable for her with a demon beast body, Yu Qingqing was not angry, but waited for his answer.

Qin Xuan seemed to have known her doubts for a long time, and said sincerely.

"I suspect that the ruins we are here are not the real ruins, and maybe there are other caves in them!"

He said in a firm voice, looking at the ordinary environment in front of him, which really had nothing to do with the tall and tall, and the speculation in his heart became more and more certain.

And to crack the key to this, you need a proof.

Qin Xuan thought about it, but he couldn't be sure what the proof set by Jiao Ancestor was.

In the end, he came to a conclusion.

He looked at the fish very seriously.

"Maybe the condition for opening this unique cave heaven needs to be stimulated by a native of your East China Sea Secret Realm, and it is very likely to be your blood!"

Qin Xuan patiently explained, and he had already made up his mind a conclusion.

Jiao Zu placed this true dragon here, just so that the sect could have a trace of true dragon blood in his body when he reproduced offspring, and it was also to enhance the aura in the entire sect.

It can be seen that Jiao Zu did not intend to let what he had hidden be taken away by outsiders, but the ruins would be discovered one day, so he would put those few Dan Fang and the Trapped Dragon Array in the stone box.

Perhaps it is to confuse those who have a heart and prevent them from discovering the mysteries.

But the font on the wall says it all.

From the time after the fall of the True Dragon to the present, the aborigines of the sect have passed down from generation to generation, and there should be a trace of True Dragon blood in their bodies, just like the words on the wall.

And if you want to find what is hidden behind it, maybe this is the proof!

A drop of blood from the descendants of the original sect!

And the fish love in front of her, as the princess of the shark race in the East China Sea, has been inherited to this day, and the bloodline can be said to be the purest one, not to mention, the ancestors of the shark race and the true dragon can also be regarded as a branch existence, and it is easy to absorb the true dragon qi in the aura of heaven and earth.

Now, isn't she the best candidate!

After listening to Qin Xuan's explanation, the love of the fish was also instantly clear in his heart.

"I see, I also want to see what is hidden in the ruins of the legendary fall of the true dragon, so I will contribute this blood."

The fish nodded earnestly, and a hint of inquiry flashed in her beautiful eyes.

As an ancient merman, they naturally have a heartfelt curiosity about the legendary true dragon, and now that they finally have the opportunity to explore it, she is naturally very willing.

What's more, although the blood of the demon beast was extremely dangerous in the hands of prepared humans, and it was even possible that a contract would be forcibly concluded, but Yu Qingqing believed in Qin Xuan from the bottom of his heart, he was definitely not the one who would do this.

After speaking, she raised the long sword in her hand without hesitation, gently slashed through her fingertips, and when the blood fell downward, it was instantly wrapped in true qi, and handed it to Qin Xuan, who was standing aside.

"Thank you!"

Looking at the drop of blood sent by the fish in front of him, Qin Xuan thanked him from the bottom of his heart.

Of course, he knew how precious a drop of blood was to the demon beast body, not to mention letting the other party give it to him willingly, and he was grateful from the bottom of his heart for this generosity.

It's just that now is not a good time to be moved.

After thanking him, Qin Xuan carefully wrapped the drop of blood with his true qi, looked at the environment in front of him, and pondered in his heart for a moment.

The scene in front of me is upright, like a square stone room, and the environment in it is extremely clean, only the dust on the corners of the four walls tells the era here.

He first walked around the stone box, and after making sure that there was no mechanism, Qin Xuan's gaze was once again locked on the wall full of obscure words.

Although there is no definite basis, he has an inexplicable sixth sense in his heart.

If there's really something else in this place, maybe it's hidden behind this wall.

Shaking his head, Qin Xuan no longer thought about it.

"It doesn't matter if you have it or not, you might as well give it a try."

He let out a low voice to comfort himself, took a deep breath, and looked at the huge wall in front of him.

The True Qi in his hand was still spinning, and that bright red was in it, Qin Xuan controlled the True Qi flowing in his hand, and slowly approached the huge wall with that drop of blood.

In the end, the blood of the fish was gently pressed against the wall.

"Hum—"

In this dark and quiet environment, there was an ancient humming sound from inside the wall!

And there is also a trace of extremely powerful coercion in this humming sound.

"This!"

Qin Xuan felt the coercion that was not malicious, and a trace of shock flashed in his eyes.

The sound quickly died down, and the blood on the wall that he was dripping from began to move slowly.

The wall did not absorb it, but slowly flowed downward, leaving a trace of demonic energy on the wall, as if painting an ancient pattern.

Everything around is very normal, the only thing that is unusual is the small drop of blood, which actually moves unhindered on the wall, and the lines drawn gradually become clear.

Qin Xuan looked at the lines that were gradually outlined in front of him, and his intuition was familiar.

This seems to have some similarities with the trapped dragon array!

"It's weird!"

Looking at the wonderful scene in front of him, Qin Xuan couldn't help but exclaim in a low voice.

The fish not far away also came with a curious gaze, and the two stood side by side, curiously looking at the drop of blood flowing in front of them.

Everywhere it flowed, it left a trace of bright red, but the shape of the blood never changed, it was still the same as Qin Xuan put it on, like an inexhaustible cinnabar red ink.

"What's going on?"

The fish was obviously unable to digest the scene in front of him, and asked Qin Xuan on the side in surprise.

"This drop of blood seems to have activated a hidden true qi, and it is painting an ancient formation, it seems to be some kind of spatial formation, let's wait for the time being."

Qin Xuan's good-looking brows furrowed tightly, but his eyes were firmly fixed on the lines in front of him.

Looking through the memories in his mind, he hadn't seen this formation.

But at this moment, he was reluctant to blink.

Although he didn't know what the effect of this formation was, as long as he recorded the lines of this formation, he would be able to redraw the formation in front of him just like using the Trapped Dragon Formation!

Space, that's the formation that every monk wants to have.

With their current space rings and storage bags, the storage space inside is limited, but if they can trigger the formation, they can create a world in it!

That's like having a place to store indefinitely!