With a few chaotic screams, Chu Tianyi felt that his body was completely in a state of falling weightless. may be related to his personality since childhood, the more nervous and scared he is, the less he will scream, although his heart at this time is extremely afraid and desperate.

He subconsciously scrambled to grab something to delay his fall. But when Chu Tianyi saw that in the flashlight that he was shining upwards, in addition to broken wood, dirt and gravel, there were also a large number of big black rats that fell together, he immediately changed his mind, and he wished that he would fall faster.

At the same time, he noticed the roar of water echoing throughout the space. Chu Tianyi turned around and looked down, but with the flash of water in front of him, his whole person fell into the cold water all of a sudden.

In addition to being water-cooled, the water is also deep and the flow rate is not slow.

With a few sounds, Mu Feng and the others also fell into the water. Several people immediately held their breath and swam desperately to the surface.

But at this time, in addition to floating debris, there are many large and small rats on the water. As soon as Chu Tianyi stretched his hand out of the water, he touched a furry thing. He guessed what it was at once, and the whole person couldn't help but hit a spirit.

Although these rats can also swim in the water, they are not aquatic animals after all, and they are a little flustered in the water. Therefore, I don't care about attacking them anymore.

Chu Tianyi was startled by the rats on the water, so he kept diving in the water, but he couldn't hold his breath anymore after a long time. He quickly paddled the water above with his hand, and suddenly burst out of the water, panting heavily.

Fortunately, the flashlight tied to his wrist was not lost, he picked it up and turned his head to look around, and found that Xiao Meng and they were all floating on the water.

Chu Tianyi shouted loudly, "Hey, are you all right?" ”

"It's okay," Xiao Meng waved at him. Mu Feng also wiped a handful of water from his face and nodded at him.

But the bearded man was not in such a good situation, and for some unknown reason, he was like a magnet that attracted these rats to him.

The bearded man screamed in fright, "Damn, what's going on!" Help me!! Help me!! As he shouted, he had to dive into the water from time to time to get rid of the rats that kept surrounding him.

The bearded man's condition was indeed strange, Chu Tianyi swam over and swung his knife to knock down a few mice that had climbed to the bearded man's shoulders. But more rats soon swam again. Even Chu Tianyi was affected.

Mu Feng blinked his eyes, pondered for a moment, and suddenly shouted to the bearded man: "Backpack, your backpack, has been filled with piano gall bladder." ”

As soon as the bearded man heard this, Chu Tianyi reached out and pulled his backpack open, and a fishy smell of piano gall immediately wafted out.

"Damn, that's it!" They immediately tore off their backpacks and threw them far away, and the backpacks fell into the water with a thud, and the rats immediately chased away like ants.

But the backpack was heavier and quickly sank into the water. The rats in the water lost their target and began to swim hastily in the water.

The water flow here is large and the river channel is narrow. Towering cliffs on both sides. There is simply no place to go ashore.

"Take advantage of these rats not to take care of us, swim forward!" Chu Tianyi shouted while paddling hard.

I don't know if it's a coincidence, as soon as Chu Tianyi's words fell, those mice suddenly accelerated their swimming speed.

Xiao Meng looked at the rats around him in surprise, "What do you mean, they can still understand human speech!" ”

"Shhh," Mu Feng made a silent gesture, and then pointed into the dark mid-air, "Look! ”

By the light of their flashlights, they saw black shadows flying out of the depths of the river, gathering here in large numbers, hovering over their heads.

"That's?" Chu Tianyi frowned slightly, identified it, and suddenly shouted, "This is a bat?" ”

"Huh? No," Xiao Meng suddenly became sad, "I just escaped from the rat nest and fell into the bat cave again. ”

"It doesn't seem right," Mu Feng looked up at the bats flying in the air, "They don't seem to be targeting us!" ”

"Yes, yes," said the bearded man, looking at him with some delight, "I know that some bats like to catch mice, and they seem to come for those rats in the water." ”

"I see," Xiao Meng breathed a sigh of relief, "the flying mouse catches the ground mouse, this is not bad!" ”

Bats in the sky skimming across the water from time to time catch a mouse and fly back into the darkness. The rats in the water squeaked. Chu Tianyi looked at their miserable state and felt a sense of revenge in his heart.

The rats that fell into the water couldn't care about these humans at all, and they quickly swam past Chu Tianyi and the others, fleeing for their lives in the distance. But those killers in the air have the most peculiar perception system in nature - ultrasound positioning.

Although these bats are lightning fast, they can accurately shuttle between four people, pinpointing the location of each mouse.

Chu Tianyi raised his head to look at this rare spectacle as he swam. I have to say that the situation in front of him shocked him incomparably, and he couldn't imagine that this place, which had been forgotten for thousands of years, had formed a unique biological chain system of its own.

Xiao Meng also sneered and said, "Hmph, you also have today!" ”

The two sides of the river were still steep rock walls, and the four of them could only keep their distance from the rats in the water as much as possible, and swam forward in the direction of the current.

Bats in the air are very efficient, and there are more than half fewer rats in the water.

Without the danger of rats, there was only one question in front of them now, he turned his head to Mu Feng and said, "Brother Feng, where do you say this underground river leads?" ”

Mu Feng floated on the water, thought for a while and said, "This is not easy to say, but in a place like Changbai Mountain, the underground river in the mountain range will eventually become an above-ground river," Hearing him say this, Chu Tianyi was overjoyed in his heart.

Ke Mufeng continued: "But we don't know now, when this underground river will flow out of the ground, this distance may be one or two kilometers, or tens of kilometers, or even hundreds of kilometers, if this is the case, we can't hold it up if we float like this." ”

The second half of this sentence made everyone feel a little happy, but they sank down in an instant.

Chu Tianyi was still about to say something, but suddenly he saw the mice that had swam in front of him, and began to swim back desperately again.

The others were also stunned when they saw it, and Xiao Meng asked in surprise, "Huh?" What happened to these rats? Lose your marbles? ”

"No," Mu Feng's face suddenly became a little grim, "These rats won't come back to die for no reason, I guess there must be something terrible or something terrible in front of this." ”

"Terrible?" Everyone's hearts instantly rose to their throats, and the bearded man panted and asked, "What could it be?" ”

Mu Feng shook his head slightly, then closed his eyes and said, "Do you feel that the sound of this water is getting louder and louder?" ”

"Really!" As soon as Mu Feng said it, they did find that the roar of the surrounding water was getting louder.

"Holy!" A terrible guess instantly appeared in Chu Tianyi's mind, "Oh no, shouldn't it be ...... ahead" A splash came over and sent back the second half of his sentence, but in the eyes of Mu Feng and him, Chu Tianyi knew that the two of them should think the same.

"What is it?" Before Xiao Meng could react, he anxiously urged, "Brother Yi, you say!" ”

"Waterfall! In front is a waterfall of the waterway fault!! Chu Tianyi spit out the water in his mouth and shouted loudly, "Swim back!" Fast! ”

However, the water here has become faster than before, and the speed of several of them swimming is far from being able to compete with it, Chu Tianyi is suffocating in his heart, he has just fallen into the water from a high place, and now he has fallen again from a higher place, could it be that he has to die in the water!

Before Chu Tianyi's extreme resentment in his heart was finished, he once again felt the feeling of weightlessness. Countless droplets of water surrounded him relatively still, and he didn't even bother to look at it, and his body had fallen into the water again.

The powerful water pressure instantly squeezed towards him from all directions, Chu Tianyi even felt that he was starting to be a little unable to breathe, his ears were full of roaring and noisy sounds, and then his brain went blank......

I don't know how long it took, Chu Tianyi felt that someone was shouting to him, and he opened his eyes in a daze. I saw Xiao Meng shaking himself all over the water.