(This book will stick to it, but please log in to the starting account to collect the book!)

What happened on the ground, Jia Yan is no longer so much.

He flies through the cave!

The humming sound seemed very noisy in a small space.

Sounds echoed all around.

"Where exactly does this cave lead to? Why can the Northeast wild tiger extract the night liquid from the boiler just through that gap?"

All of this is still a mystery to Jia Yan.

The cave where he is located has a height of five or six meters and a width of seven or eight meters.

Jia Yan tries to keep flying at about three meters, which is half the height of the cave, so that no matter where the attack comes from everywhere, he will have the best escape route!

He felt that there was absolutely no secret in this cave, or the front of the cave.

Otherwise, based on the humble conditions of the Northeast wild tiger, it is impossible to autonomously refine the night liquid that can make the third mutation!

Jia Yan has a faint guess that his biological entity after three mutations is absolutely extremely rare, because each time three times, it is extremely difficult!

Even he was wondering, why can all those maggots and the like mutate successfully? !!

Even if it is only the first mutation, Jia Yan thinks that ordinary creatures should be difficult to cross. If he hadn't trained himself since he was born, and possessed the tough character of a human soul, maybe he wouldn't be able to walk for the first time. How could those lowly intelligent creatures step through this hurdle?

"No! I missed a detail, that is, the mutant organisms I have seen are basically arthropods such as tadpoles and snakes. The characteristic of this animal is that it is much stronger than a mosquito! Is this why?"

Jia Yanyin sorted out his thoughts.

He feels right!

Mosquitoes are diptera insects, and the creatures of the order Diptera are relatively weak, and so far, he has not seen any mosquitoes that have successfully mutated except himself.

Jia Yan is unique.

"Think again, don't talk about Diptera, it seems that other flying creatures have not seen half of the mutations succeed."

"That's right. Generally, flying creatures have relatively poor physiques. It is normal to be unable to mutate successfully. In this case, even if there are many accidents in flying insects, it is likely that I am the only one. Mutated three times? "

Jia Yan is very confident about his uniqueness. After all, he can survive three mutations, and the human soul has played too many roles.

"But what is that fiery red cricket just now? Is it also a mutant creature that can grow to more than two meters long? This cannot be described by common sense."

If converted to mutation, the average cricket wants to grow to more than two meters long, at least three times more than mutation, otherwise it is impossible to have a body of this length.

Of course, the creatures in this cave may not be explained by mutation. Perhaps it is an ancient species that has survived and evolved here until now!

Jia Yan is still flying.

Some questions, the more clear the more you think about it.

Including this cave that has never been known where to extend, Jia Yan also has some guesses!

"If you want to provide such a huge puppet to survive, the front of this cave is likely to be no longer like this! And there will never be fewer creatures, otherwise, according to the current appearance, that puppet must not be required to survive. food!"

Cormorants are carnivorous creatures. Although they occasionally eat fresh grass and algae, their favorite is still meat. Jia Yan believes that even if the puppet is even huge, it is unlikely to be separated from the living habits of its own ethnic group, so it is likely to be a predator.

Such a huge carnivore can only survive if it has a huge food source, otherwise it is impossible to survive.

So Jia Yan can be sure that there are definitely different views in front of the cave.

What's more, what might be displayed in front of his eyes would be a huge world of underground creatures!

Jia Yanfu's eyes were filled with a more intense look of interest.

An unknown complex world is really interesting, which makes him a man who loves zoology, full of interest.

If it was a human, publishing that puppet alone would be a big news that shocked the world.

Of course, this is better now, Jia Yan feels that it is also good to enjoy a secret alone!

Keep flying forward.

Just as Jia Yan flew over a stalactite, under the light of a glowing moss above his head, a little metal reflective things flashed slightly in the corner of the cave.

"what is this?"

Jia Yan flew over.

"Uh? Helmets, as if they were worn by soldiers."

On the ground, a rusty, very powerful metal helmet refracted the light in the dim light.

Maybe it's too old, and the helmet is half-baked.

"It looks like this helmet has been rotten for decades. Is there a human here before? Yes, since the Northeast Wild Tiger factory is connected here, it is normal for someone to come down from above. And this helmet looks Or the army? "

Jia Yan thought of some bullet marks on the three buildings of the factory.

In that war-torn era, it was too normal for anything to happen. Even if such a huge scientific discovery was obtained, it would be possible to drown in the long river of history for some purpose.

Jia Yan continued to fly forward.

Next, human objects scattered everywhere appeared one by one in Jia Yan's eyes.

These are basically soldier stuff, with highly rotting guns and ammunition.

Jia Yan even saw several white bones!

Bai Sensen's looks terrifying.

"It seems that it wasn't the actions of one or two soldiers that came here before, but the organized behavior of a certain army." Jia Yan looked at everything in front of him. He didn't understand why so many soldiers died here. What dangers have you not discovered yet?

He was more alert!

Fly forward some more distance, he estimates that he has been in this cave, flying more than two hundred meters!

The cave above his head is getting higher and higher, and the surrounding area is getting wider and wider.

Jia Yan felt that the tender green algae around it gradually flourished.

Finally after he passed a pile of rubble.

The world in front of us suddenly opened up!

Sure enough, Jia Yan expected that a new world appeared in front of him!

But this new world is far wider than he imagined!

The space above the head is at least 20-30 meters high, and the surrounding space is so wide that it is difficult for Jia Yan to see the end!

Not far from him, streams and streams of groundwater converging slowly flowing.

Numerous glowing moss, like blooming flowers, grow in full bloom at the top of the cave, shining this space like daylight!

Wow!

Just when Jia Yan was horrified to look at the surrounding scenery, a sudden splash of water burst into the water pool below his body!

A large fish with a length of more than fifty centimeters in the water jumped from the water and shot towards Jia Yan in the air.

"what?"

Jia Yan was startled, his wings fluttered quickly and moved away from where he was!

That huge fish looks like some kind of grass carp, but it is really too big, more than fifty centimeters full, the mouth of the fish is open, and he took a bite at the place where Jia Yan was before!

Fortunately, Jia Yan has left that position. This giant grass carp just splashed a spray of water in the air, so that Jia Yan was all wet.

Then it fell again.

"It can actually jump to a height of two meters, and this fish's jumping ability is too strong!"

Jia Yan felt strongly that his current height was not enough. Fortunately, there was more space at the top, and he quickly controlled his body and climbed to a higher place.

He looked back and realized that the cave he came out was just a cave in this vast space. There were several similar caves nearby.

"The real underground world really exists!"

When Jia Yan thought of being a human, he had seen a lot of science fiction movies about the underworld, as well as related novels and analysis.

Those analyses prove that the underground world is likely to really exist, and the number is not small!

It's just that the scale cannot be as vast as the description of a novel or a science fiction movie!

Now this space is obviously one of this kind of underground world.

"It's very large, it is estimated that the length and width are more than five kilometers! In addition, there are some small caves connected to this place. The total area adds up to a very large area."

With his sight after three mutations, Jia Yan tried his best to feel the light of the luminescent algae in the distance, and judged the size of this huge space slightly!

And there are many plants among them. These plants do not rely on sunlight to grow, but use water and the surrounding high concentration of oxygen to grow.

It seems that in the course of many years of evolution, a unique ecosystem has been formed here!

To be continued. Today's mentality cannot be adjusted, so this chapter was released so much late at noon. And another hit is that today there is no short of website recommendation next week! No wonder when he asked the editor's grades this morning, he wasn't quite right. I guess it was really not very optimistic, so I don't recommend it ...

Alas, the collection of this book is not bad. The two recommended it, and it increased by more than 3,000 collections, with a total of more than 4,200 collections. Is it true that a newcomer must pass the 110,000 increase like the Great God to qualify? The author who signed with me at the same time has a worse score than me, and I will recommend it next week. It is estimated that this is a bad step, and this week I got involved in editing too many times, alas.

Okay, thank you for your support, ‘I smiled, I cried, and forgotten’, and rewarded 1888 starting coin. Thanks to the "Mourning Committee", "878kh", "Reluctant Dreamer", "mengying Lolo", "I silently looked at Ge Cangtian", "registered?" Step by step promises that this book will never be an eunuch! I'm sorry not to write millions of words! !! !! Will definitely continue! !!

Hope everyone can support Leap as always, thank you! !!

If you like the rebirth of the giant mosquito, please collect it: (lightnovelpub.net) The literature of the rebirth of the giant mosquito is the fastest.