Bureau of Psychic Creatures Investigation

East China Sea.

underwater.

A few strong beams of light swept around, but there was nothing abnormal.

They brought a lot of equipment this time, taking almost all contingencies into account.

Especially the reserves of oxygen, enough for them to stay underwater for two hours.

However, this data is at a depth of ten meters.

So there is not much reference value.

After all, as the pressure increases, the amount of oxygen that needs to be consumed also increases.

Moreover, each person's breathing method and breathing size are different, so this data cannot be used as a standard.

Fu Kuan also used a high-tech material called "diving crystal" this time.

Their diving suits are covered with such crystals.

And this kind of crystal can absorb oxygen underwater and release it at any time.

But this technology is not mature.

So to be on the safe side, they still carried two heavy oxygen cylinders.

But with the effect of this crystal, they can stay underwater for a full twelve hours this time.

If the wear and tear of the crystals and all worries are removed, the time they can stay underwater is terrifying.

The oxygen problem is solved.

But diving is more than that.

These Fu Kuan were also taken into consideration.

The situation that everyone imagined did not appear.

Among the eight people, Jiu Di, Guang Can and Shi Lei were diving for the first time.

The three of them are real landlubbers.

But Shi Lei is a "half human" after all, so this point can be ignored.

But Fu Kuan put a lot of energy into Shi Lei.

To him, these are not a big deal.

A group of people moved forward steadily.

The depth of their dive gradually increased.

Wang Gongcheng continued to dive into the depths, and there was no trace of the entrance of the underwater tomb at all.

"Is everything okay?"

Fu Kuan asked softly.

"No problem, just pay the team, where is this entrance?"

Wang Gongcheng answered them.

"It should be several hundred meters underwater."

"So deep?"

Everyone was a little at a loss.

You know, the safe depth for ordinary people to dive is about 60 meters.

And their bodies are very different from ordinary people, but they will definitely not reach more than 500 meters!
"The world's diving record with equipment should be more than 300 meters?"

"That's right, and this is the limit. For us, I'm afraid we can't do it at more than 400 meters. After all, we are not professional divers."

Everyone was a little apprehensive.

They didn't expect that the entrance to the underwater tomb was so deep!
"With the support of the equipment this time, it should be able to reach a depth of 500 meters. Your physical fitness should be fine, but Wang Lao and Lian... If you feel any discomfort, you must stop immediately!"

Fu Kuan immediately emphasized.

Wang Gongcheng and Lian also readily agreed.

"Are we just searching aimlessly like this? We have to find the year of the monkey!"

Zhou Changsheng waved the bright flashlight in his hand, obviously a little impatient.

"I followed the route of the year."

Wang Gongcheng's words dispelled the thoughts of several people.

They will not question how Wang Gongcheng could find the entrance according to the route of the year after many years.

After all, they are not ordinary people.

"More than 200 meters..."

Fu Kuan could already clearly feel the water around him constantly squeezing his body.

This kind of pressure brought them a lot of pressure.

Wang Gongcheng's face inside the helmet did not change in any way.

And Lian's body was obviously a little weaker.

Seeing this, Fu Kuan directly pulled Lian by his side.

Before he went into the water, he had already given her a lot of medicine, and if he insisted on it for a few hours, there shouldn't be any problems.

But Fu Kuan was most worried about the two landlubbers, Jiu Di and Guang Can.

The surroundings have become very dim. If there is no light beam, they can't even see the people around them.

Fu Kuan's heartbeat also gradually accelerated, and he seemed to feel a strange current flowing around him.

"stop!"

He stopped moving, picked up the flashlight and swept it behind him.

No one was left behind, but the faces under the helmets of everyone were a little dazed.

"what happened?"

"Do you feel the water flowing? It's a very strange water flow..."

"I feel it, it seems to be the direction of water flow like a whirlpool."

"No, the direction of the water flow is clockwise for a while, and counterclockwise for a while!"

Yan Ru shook her head and swam to Fu Kuan's side.

Afterwards, he took out something similar to a compass, except that it only had a needle and no compass underneath.

After the ripples dissipated, Fu Kuan could clearly see that the pointer turned clockwise for a while, and counterclockwise for a while.

"Sure enough, it's not easy, the entrance should not be far away!"

Wang Gongcheng didn't speak all the time, but he also interjected at this time: "If the water flow can keep clockwise all the time, it proves that the entrance is not far away, and this phenomenon can only explain one point."

Everyone cast curious eyes.

"Now we're at the intersection!"

"cross?"

Fu Kuan also asked quickly.

He adjusted his breathing to minimize oxygen consumption.

"Yes, it is a fork in the road, but this intersection may be horizontal or vertical."

"That means there are... six choices?"

"No, one in six chances."

"Then how about we try one by one?"

Jiu Di interjected.

"How is it possible? It takes a long time to go back and forth. We can't delay for such a long time."

"Old Wang, how did you get away back then?"

After Wang Gongcheng heard Fu Kuan's words, he smiled embarrassingly.

"Actually, we were blind cats and dead rats back then, and we were fooled casually, but if we followed the route back then, it would not be feasible."

"You mean, the position of this entrance will change back and forth in these six directions?"

"That's right, in fact, it is more accurate to say that there are five directions, and the probability of the entrance being above the head is a bit small."

Fu Kuan nodded.

The crowd fell into contemplation.

How to choose?
this is a problem.

Try one by one?
They can't afford that long.

And it is very likely that after trying a wrong route and wanting to return to the original route, their positions may be deviated.

And their current position is a very accurate fork in the road.

Fu Kuan lowered his head without saying a word, looking at the dim light in the water, he suddenly thought of something.

"Old Wang, how to analyze the movement of water flow?"

"Analyze the direction of water flow?"

Not only Wang Gongcheng didn't understand this sentence, but the rest of the team members also didn't understand what Fu Kuan was saying.

"You said that the movement of the vortex is only the entrance if it is kept clockwise."

"That's right!"

"Then our current location, no, is the specific location of this intersection, can you determine it accurately?"