Zhang Fan lost nothing, but he did not dare to say it.

Otherwise, it will cause a bit of doubt.

He himself wondered why every time someone else loses something, his own things are intact.

By this time, everyone had already arranged 10 sets of equipment.

Everyone discussed it and got into the water by ten people.

The remaining three men guarded the equipment on shore to prevent it from being lost again.

Zhang Fan also put on a wetsuit and held an energy detector.

Because of the cold weather, the lake has already formed a thick layer of ice.

But this ice is not a problem for warriors at all.

A warrior punched down and smashed the ice into a large hole five meters in diameter.

On the surface of the water, the heat is light.

Obviously, the water below is warm.

Ten people jumped into the water.

The other nine men dispersed a little and dived to the bottom of the lake.

After entering the water, he did not dive down immediately.Instead, the nanowatch was activated with a brain wave and ordered, “Scan the entire bottom of the lake.”

Soon, the nano-watch detected the entire bottom of the lake, and then generated a three-dimensional map, which was presented directly on Zhang Fan's retina.

Zhang Fan is already familiar with this three-dimensional map.

In the previous information given to everyone by the Warfighter Association, there are topographic maps of these three pools.

Obviously, some people have explored here before and mapped the three-dimensional topographic map.

However, the detection equipment used by the man is much behind compared to Zhang Fan's nano-watch.

The three-dimensional map generated by the nano-watch is much more detailed than the three-dimensional map given by the previous martial arts association.

Many details in the three-dimensional map of the martial arts association will not be displayed, and the three-dimensional map generated by Zhang Fan's nanowatch will show almost all the details.

As long as he amplifies, he can even see every rock, every stone seam, every grain of sand under the water.

However, because there are too many details, Zhang Fan will not be able to see it for a moment and a half.

He directly issued the instruction with the brain waves: "Search for abnormalities."

Soon, the Nanowatch examined all the details on the map and replied, "No anomalies have been found."

Zhang Fan's eyebrows frowned slightly and said, "Deep scan."

Nano's voice replied:

“Start the deep scan...”

“Depth scan 10%...”

“Depth scan 20%...”

Moments later, after the deep scan was complete, the system in the nanowatch automatically retrieves the anomaly.

Soon, the sound of the system came: "I found anomaly."

Soon, the map magnified, and at the bottom of the lake at the very center of the map, fifteen meters deep beneath the rock formation, there seemed to be a vague handwriting.

However, because the rock formation is too thick, this handwriting is not very clear.

Zhang Fan immediately dived down to the bottom of the most central lake.

The deepest part of the lake is about 30 meters deep.

After Zhang Fan dived to the bottom of the lake, he saw that the bottom of the lake, in addition to a small amount of sediment, was a thick rock layer.

Fifteen meters thick rock, want to dig out, very difficult.

He searched here for a while, and there was really no way, Zhang Fan had to go ashore.

At the same time, I sent a message to others about their discovery.

The others also landed.

They are naturally excited about the news.

But they are strange, they carry the energy detector, can only detect the rock formation at most five meters below.

Their multi-function watch scanning can only sweep five or six meters under the rock.

How did Zhang Fan find the handwriting at 15 meters below the rock formation?

Zhang Fan will have long thought out: "My multi-functional watch is the latest concept watch, is still in the experimental stage."I had the privilege of being the first to experience it."

Everyone is envious.

Next, we will discuss how to dig up this 15-meter-thick rock.

After the discussion, the people unanimously decided to dig with their own weapons.

Their weapons, although not Zhang Fan's blade sharp, but also far more sharp than the ordinary sword.

Coupled with the fact that they are all intermediate fighters, the force has reached more than ten tons.

Using such a sharp sword, cutting the rock is still no problem.

So they divided into two groups, each group of five people, went down to cut the rock.

The following rock formations are almost always formed after magma solidification and are very slow to cut.

Plus it’s underwater and can’t move too fast, so cut more slowly.

It took five days to dig a hole two meters in diameter and 15 meters deep.

At this time, the handwriting under the rock finally appeared in front of everyone.

This is the word engraved on the rock.

Not a lot of words, just one.

This is a one meter long and a width of one meter.

The only thing that is seen is not a modern text, it looks like a kind of pictogram.

However, this is a very recognizable word, it is a "water" word.

One by one, they went down into the hole and studied the word water.

Take a photo, scan, and then send the word back to the headquarters of the Warfighter Association.

Next, everyone went ashore and waited for the results of the analysis of the martial arts association.

A day later, the result came out.

From the word itself, there is no result.

But the name of the five major pools reminded them of the five lines.

People understood and immediately explored the other four pools.

The result of the detection is the head pool, two pools, three pools, five pools, and there is a word in the rock formations under each pool.

There are only four of them without writing.

Then the people dug under these pools again.

However, the excavation process did not go well.

During this period, they lost three sets of wetsuits, two energy detectors, two weapons, and three packs of compressed biscuits.

In short, they have less and less equipment.

It has to be reminiscent of someone trying to stop their exploration of this place.

But at this point, if you don't dig again, everyone is not willing.

So after the equipment is sorted, we have gathered five complete sets of equipment to continue diving and excavation.

As a result, the progress is slower.

In this ice and snow, under the bottom of the lake, they have carried out more than 20 days of excavation, and finally dug out a hole in all five bottoms.

After the handwriting was revealed, it was really four words: gold, wood, water, and soil.

Underneath the pool, there was no handwriting.

In other words, there is no fire.

After research, we found that the key to finding energy stones is probably under these four pools.

At the headquarters of the Warmakers Association, after expert analysis, they believe that these four words may have been engraved by ancient people to suppress the volcano here.

In ancient times, volcanic activity was frequent.

So someone engraved these four words and formed five lines with the volcano.

The five-line cycle, which is related to each other, in order to suppress the volcanic violence.

Of course, this is just an old saying.

In the face of modern science, it is simply untenable.

However, the four pools are the key, which is unanimously agreed by everyone.