Tang Dayuan thought, maybe, those heavy things are sinking lower.

So.

So he went on to dive deeper.

But.

The depth at which he dived was relatively deep, and he was only seventy or eighty meters above sea level.

After a quick search.

Tang Dayuan still found nothing.

At this point, he was basically dead.

There is really nothing of value on the "ghost ship". Moreover, he did not find Liu Kongzhao's body, so it was impossible to pull out his clothes and even underwear to sell for money.

In desperation.

Tang Dayuan had no choice but to return the same way.

But.

Just as I was about to leave.

He actually found a cave on the underwater stone wall.

The cave is not necessary, an adult can walk upright and be able to enter it. Moreover, the edge of the cave has been hewn and hewn, which is a very obvious man-made trace.

This kind of trace immediately aroused Tang Dayuan's interest.

Checked the oxygen.

He still uses it more economically, and the consumption is not large.

The remaining oxygen, he estimated, was at least more than half an hour to consume.

There are these guarantees.

He decided to go into this cave with obvious traces of humanity and have a look.

Maybe what's in there?

After the headlamp shines in.

Tang Dayuan also found that there was a sloping down staircase there.

And.

The steps were neatly chiseled.

See here.

Tang Dayuan resolutely swam in.

The cave is diagonally downward.

Tang Dayuan kept swimming to the depths of the cave, estimating the amount of oxygen remaining in his heart. Once he reached the limit of his endurance, he would definitely return immediately.

But.

What he didn't expect was that the cave wasn't that deep.

Tang Dayuan's downstream speed was very fast, and within a few minutes, he had already swam out of that cave.

It was pitch black in the cave.

However, after he got out of the cave, there was light scattered from the direction of his head.

Even without a flashlight, he can probably see his surroundings.

This place.

It looks like a huge sinkhole under the sea.

I don't know where it leads, and down, Tang Dayuan also used a penetrating underwater wolf smoke flashlight to focus the light down, and he still couldn't see the bottom.

Afterwards.

Tang Dayuan swam down for some distance.

But.

This bottomless feeling has not changed in any way.

The remaining amount of oxygen was already near the limit range that Tang Dayuan could bear, so Tang Dayuan decided to return the same way immediately. However, as soon as he turned around, Tang Dayuan realized a very serious problem.

Around the sinkhole under the sea, like the cave that Tang Dayuan came out of just now, there are at least thirty of them.

Because all the attention just now is in the abyss below.

Tang Dayuan didn't pay much attention to which cave he came from.

In this way, the problem is more serious.

Oxygen levels alert, he can't go wrong now.

After careful discernment.

Tang Dayuan gritted his teeth, because staying for one more minute would also consume oxygen, so it was better to rely on his intuition to find it directly. However, his choice was wrong.

After swimming for a while.

He went out of another cave, thinking he was back in the sea.

Unexpectedly, he returned to the sinkhole.

Tang Dayuan was thinking.

Since there is a light coming from above the sinkhole under the sea, it must be able to open to the surface of the sea. If you swim vertically, you may be able to save oxygen and get out alive.

So.

And he did.

But.

These came, and the unexpected happened.

In the undersea sinkhole, a whirlpool suddenly appeared.

A strange undercurrent poured out of the sinkhole frantically, directly involving Tang Dayuan. He struggled to get out of the undercurrent.

But.

The undercurrent is an extreme cold undercurrent.

The body temperature dropped sharply within a period of time, causing his entire body to freeze, and even cramps appeared in the places where his left and right thighs could exert force.

He couldn't move, he could only be at the mercy of the undercurrent.

Afterward.

He fainted.

When he was confused and woke up again.

He floated on the surface of the lake in the middle of the island, the water was cold, and he seemed to be unable to move. However, he gritted his teeth and fluttered desperately.

Gradually.

Climbed ashore.

He thought of the man he had found on the shore at that time.

It was exactly the same as his situation at the time.

He didn't want to die.

Because, he has a home.

He has a wife and children.

Without Tang Dayuan, the sky would fall, so he couldn't fall.

On the verge of coma, Tang Dayuan's legs couldn't move, so he relied on the strength of his two arms to drag his body from the lake, crawled into the forest, passed through the forest, and finally arrived at the camp.

Get on your stomach.

A fire was lit.

After a little roasting, he barely sat up.

But.

He's still in very bad shape.

He wanted to call for help, but his throat couldn't make a sound.

After that, Zhang Yi and Fang Xijing both knew.

Knowing this, Zhang Yi and Fang Xijing should have returned to the camp earlier.

But.

Thankfully, it was in time.

That's it.

Tang Dayuan asked.

"Master Zhang, do you have a pen there?"

In this case, I really can't find a pen.

Zhang Yi had no choice but to shake his head.

Tang Dayuan stood up, looked around, and found a relatively sharp stone. I found a relatively flat beach and started drawing.

Strange lines gradually form a strange pattern.

"That's probably it, I'm probably not drawing it accurately."

Tang Dayuan threw away the stone and said.

Fang Xijing didn't know what this pattern was, but Zhang Yi knew what it meant.

"Old Tang, what are you painting this for?"

Zhang Yi asked.

"The stone walls around the sinkhole below are all covered in this pattern!"

Tang Dayuan said.

"You mean, the stone walls under the island are all covered in this strange pattern?"

Zhang Yi was surprised.

"That's right!"

Tang Dayuan is sure.

Could it be that this island in the middle of the lake is the source of those strange patterns? What is there beneath the sinkhole, and why is there such a strange pattern on the stone walls around the sinkhole?

And also.

Why was the "ghost ship" of the Southern Ming Dynasty destroyed by wind and waves in this place?

Are these all coincidences?

The records in the official history are not detailed enough.

So.

The last sincerity of Liu Kongzhao left the land and went to the sea, which is not recorded in the history books.

What did he do when he went to sea?

Is his ultimate goal this island?

Under the lake in the middle of the island.

Is there a secret hidden in the ghost seal of the dragon seal?

Time.

A lot of questions came to mind.

With Zhang Yi's current conditions, it is far from enough to go down and explore again. Even if there are enough conditions, after going down, you may encounter the deadly undercurrent that Tang Dayuan said.

In the afternoon of the same day.

In the distance, the whistle of a huge ship was heard.