After swallowing the jaguar, his stomach became bulging, but it did not affect his mobility at all, and now his digestion speed is very fast, and he can digest this cheetah in about a minute.

Fang Yun glanced around, all dense trees and bushes.

Instead of looking for prey, he was ready to return to the river.

"Find a place that is deep and safe and use the evolution template."

This is his plan.

Increasing bio-energy is not the first important thing for him at present. Compared with using the evolution template, this matter has to be a little behind.

Following the line in memory, Fang Yun returned to the river.

After the muddy water submerged his body, he quietly swam forward. He kept swimming forward, and this time he swam for another three days.

In three days, he did not find a suitable place, which made him feel a little frustrated.

But this morning, he finally made a new discovery.

A hole.

Fang Yun's huge body curled up under the water, and then looked at the hole in front of him.

Of course, at this depth his eyes cannot be observed.

The reason why he discovered this hole was because he had passed through here earlier, and found that the water temperature here is a little bit colder than other places.

Then he touched the place with his head, and he didn't touch anything like mud, but a stream of water, so he felt that there was a hole in it.

He glanced his head inwards, and was basically sure that this was a hole.

And it's especially huge, he can turn around anyway.

The height of the cave entrance is not very high, about one meter and five. This is Fang Yun's estimate, and it must be different from the real situation.

He swam inwards, and he swam very slowly, mainly because when he was swimming, he had to observe whether this hole was getting smaller and smaller.

To his surprise, the inside is as spacious as the outside.

"Where does this underwater passage lead?"

This is Fang Yun's question, and he found that this channel has a downward trend.

After about three or four kilometers, he came to the end of the passage.

At the end is also a piece of water, like a large underground lake, the specific size of Fang Yun is unknown, here is dark, he can see nothing.

However, his snakes can also catch chemical signals in the water, and no creatures have been found in this water.

He walked around the water and found a place where the rock layer above his head broke a hole and was about two meters in diameter.

Fang Yun drilled out of that hole, and the light was slightly brighter, and his eyes began to glance around again.

Above this, there should be a lake exposed above the earth, because there is light-but the light is a bit dark.

But when Fang Yun looked up, he found a large bright spot above, obviously above it was the sky.

The water here is relatively clear, and if it goes up, it will definitely be clearer.

As for the depth of the lake, Fang Yun is not yet known. He has to check it before he knows.

Thinking of this place, Fang Yun began to investigate this lake. He first looked along the bottom of the water and found that the area where he was before was almost the deepest place.

Immediately, he floated to the surface of the water, carefully checking the situation by the lake.

There is no doubt that this is a lake in the old forest of the deep mountains, surrounded by a jungle, the jungle is covered with clouds, and the air is very humid.

Today, the weather should not be very good. If it is the weather of the big sun, these clouds should dissipate a lot.

In addition, he found no traces of human activities around the lake for the time being. He was very quiet, only the waves of crisp birdsong coming from the jungle.

This lake is particularly large. It is generally in the shape of a spindle, with a length of at least 20 kilometers and varying widths. The widest part is about 2 kilometers, and the narrowest part is about 800 meters.

In addition, the depth of Fang Yun is also particularly satisfactory. The deepest place must be 100 meters, which is the area where the hole connecting the underground lake is located.

The shallow place is only a dozen meters.

There are also a lot of prey resources in the lake. Wandering around, Fang Yun found several small fish schools, including a large fish one meter long.

Of course, these have nothing to do with Fang Yun, he did not come here for hunting.

"I can use the evolution template here."

With such a thought flashing in my heart, Fang Yun thought again and felt that the plan was feasible, so he sank his figure to the bottom of the water.

He came to a position about one hundred meters in front of the hole-the rock layer near the hole was thin, and then lay there quietly, ready to start evolution here.

Because he didn't need to breathe while he was asleep, Fang Yun didn't have to worry about his suffocation.

"System, use evolution template, ba snake template."

He whispered in his heart, and the next moment, a strange feeling hit his body.

This feeling, um, how to describe it, is a particularly "sleepy" feeling, a bit of eyes want to sleep, but the head is very sober.

Fang Yun is like this at this time.

His body function fell into a deep sleep, but his consciousness was still awake, he could perceive everything around him, and even said that his perception became more acute at this time.

Like a small fish swimming past him before, it was all felt by him.

In addition, if he is in danger, he can force himself to wake up from this sleepy state, but this way, his evolution is counted as a failure.

In other words, he will waste this piece of "Snake" evolution template.