At this moment, the water level has risen to a very high level. Most of the stone chamber is swimmer-only, except for the throne and the ground behind the throne that is not flooded. By this time, most of the place had been searched, and only the throne and the back of the throne had not been explored. At this time, it may be because Yuan Dou and their determination to still not give up infected Feng Duo and Jia Cheng. After Feng Duo joined the crowd first, Jia Cheng also joined in.

The six of them worked together, and the throne and the nearby table were checked at once. Even where the mechanism was triggered, Yuan Dou let Ye Xi check it aside, but he also didn't gain anything.

The water continues to rise, and the surrounding corals are particularly colorful in the water, and even the keel relief on the wall is much more alive when it is wet by the sea. However, at this time, it was much more severe for Yuan Dou and them. Because the rest of the place was also filled with seawater, Mototo and the others had to take a deep breath and dive into the water to observe the last wall.

However, this last stone wall gives everyone confidence, unlike other walls that only have keel reliefs. This wall not only has the head and tail of a bone dragon, but also has a rich mural painting.

At the bottom of the mural is a sea of rough seas, with the tail of the bone dragon buried beneath the surface. And on the surface of the sea, the pattern Yuan Dou painted couldn't understand it. There are four circles drawn on it, each of different colors, one is red, one is blue, one is white, and one is earthy yellow. The movements of the circles are drawn with lines of different styles, as if they radiate from the circles. The red lines around the red circle are in a circle and vary in size; The blue lines around the colored circles are diamond-shaped; The earthy yellow circle is also surrounded by earthy yellow lines, and the square is about the same as the front; But the white ones are different, the white lines appear extraordinarily slender, only the front end is straight, and it is not slightly twisted until the end, and does not form a specific shape;

And the dragon's head on the top of the circle is there, and the whole dragon's head is looking at the sky obliquely. The dragon's mouth is wide open as if it is looking up to the sky and roaring, and the dragon's whiskers dance as if fluttering in the wind, and the whole looks lifelike.

The water level continues to rise, and time is getting shorter and smaller, and the entire mural has been examined countless times, but there is still no clue. Although everyone felt that the clue was in it, they couldn't find it. As they got closer to the ceiling, so did the eagerness. At this time, except for Yuan Dou, everyone else seemed to have given up, and they all floated on the water and quietly watched Yuan Dou continue to dive into the water and float up again to breathe.

Yuan Dou took another deep breath and dived. Yuan Dou controlled his body to float in front of the mural, constantly looking. Looking at the dragon head looking up to the sky, Yuan Dou suddenly realized a question in his heart, that is: how did the water enter the cave?

Suddenly, as if there was an undercurrent, Yuan Dou was retreated away from the mural. Yuan Dou was taken aback by this sudden power and couldn't help but take a few sips of seawater. Yuan Dou immediately floated up, and while going upstream, Yuan Dou subconsciously looked back at the stone wall. Suddenly, the lines on the stone wall seemed to change. Yuan Dou struggled with his hands and quickly swam to the surface.

"Ahem, cough, cough~~~!" As soon as he showed his head, Yuan Dou began to cough, and after coughing, he began to gasp for air again.

"Yuandou, what's wrong with you?" Lian Yan asked with concern.

Yuan Dou was still panting, so he could only shake his head and say to Lian Yan that it was okay. At this time, Lian Yan said again: "Yuan Dou, we have seen the murals below many times, there is no need to look at them again." You might as well discuss it with us. ”

Yuan Dou finally recovered at this time, and then gasped and said, "Huhu, I seem to have found something, and I have found a clue." ”

"Really?" Lian Yan asked in surprise.

Not only Lian Yan, but others also looked at Yuan Dou's words.

Seeing this, Yuan Dou hurriedly explained: "I think that as long as we find out where the air is flowing from, we can find our way out." ”

Lian Yan looked around and said, "Yes, the sea water came in, it must be because the air ran away." It's so simple, why didn't I think of it? ”

Lian Yan couldn't help but be happy, but Yuan Dou said to Lian Yan at this time, "You go and find the place where the air ran away, and I'll go down and have a look." After Yuan Dou finished speaking, he didn't wait for Lian Yan to speak, took a deep breath and dived again.

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