At the beginning, Qiao Hua also regarded blue light as the reflection of starlight in the sky, but later he found that even in the dark night without starlight, there would still be a faint light in the sinkhole, like thousands of fireflies gathered at the bottom.

The blue halo looks very beautiful. But if this light is added with some unknown color, it is actually more weird and terrifying for Qiao Hua.

Although Qiao Hua knew that this place must have hidden a lot of secrets, the fear that welled up in his heart made him have to think about leaving this place.

"Roar!"

The dwarf tyrannosaurus called out to the little squirrel that was burrowing with its claws, and then crawled forward and buried its head in the road. He only hoped to be able to escape this somewhat magical place before night fell and find a suitable place to perch.

Although Qiao Hua was confident that it would be no problem to deal with one or two super-large beasts, if the other party came in a group, he might not be able to retreat with his whole body.

Thinking of this, the dwarf tyrannosaurus couldn't help but speed up its movements. Although his body was completely obscured by the long grass, he managed to make as little noise as possible just in case.

Soon it was ten o'clock in dusk. The pit went from fighting with his eyelids at the beginning, to curling up in a ball and falling asleep completely. But the dwarf tyrannosaurus beneath its body didn't feel sleepy at this time.

Qiao Hua found that the area was much larger than he had imagined, and even though he ran wildly, there was still no way to escape from the dense grass and trees. It's almost sunset now, and it looks like I'm going to have to spend an evening here.

Just when Qiao Hua was about to find a suitable place to spend the night, he suddenly heard a slight noise in front of him. His body paused for a moment, and then slowly leaned over.

After a few steps. The weeds that had been dense suddenly disappeared. What appeared in front of this dwarf tyrannosaurus was a huge crater with a diameter of nearly 100 meters. The sounds Qiao Hua heard just now were made by the big fish under the water slapping on the water.

Qiao Hua couldn't help but secretly rejoice. If it weren't for these subtle sounds, according to the speed at which I was moving just now, it would probably be because of too much inertia. I couldn't stop for a while, and the car fell into this deep pit.

Standing on the edge of the sinkhole and looking down, I saw some large fish swimming slowly, each of which looked relatively bloated, and it seemed that the food under the water should be very abundant.

Judging from the height, the entrance of the cave was almost twenty meters away from the water surface, and Qiao Hua could not judge the depth below the water surface.

The walls of the pit are very smooth. It was covered with a thin layer of moss-like plants, though two or three small trees still grew diagonally out of the cracks in the rocks.

And on those strange branches, there are the skeletons of many creatures. Obviously, not every animal has the same luck as Qiao Hua, but many have fallen into the pit. Because he didn't have a chance to crawl out, he starved to death inside. Of course, there may be many more that have already perished.

Although for Qiao Hua, such a scene does seem a little shocking. But it also piqued his curiosity, so the dwarf tyrannosaurus decided not to rush and stayed here for one night.

The sun was setting in the west, and it was getting darker.

The pit had long since been lonely and went to find something to eat, but to the disappointment of the little squirrel, there was nothing but the red fruit that grew around. The rest of the tree only grew leaves but not fruits, and the pits were found for a long time, so they simply lay on the branches and did not move.

At this time, Qiao Hua looked at the pit with a surprised face. In there. The faint blue light was getting brighter and brighter, not only allowing the fish to swim inside, but also showing the entire bottom of the pit in front of Qiao Hua.

Just as this dwarf tyrannosaurus conjecture, there are large and small animal skeletons piled up underwater. The ghostly blue light shone on the skeletons that were already a little decayed, like a scene in hell, even more terrifying than the dinosaur mound Qiao Hua saw last time in his hometown.

Qiao Hua guessed that the luminous object at the bottom of the water should be a kind of substance similar to fluorescence. After the UV rays stop shining for a while, the light disappears automatically. However, it turns out that after a long time. The glow from the bottom of the water still appears to be abundant, showing no signs of weakening at all.

And. Attracted by this light, many huge flying insects that had been hiding in the grass gradually converged towards the surface of the water, and then threw their bodies into the water without hesitation.

"Whoa-la-"

The fish under the water suddenly churned. The big fish with fat brains began to compete for food on the big flying insects that landed on the water, and they were extremely crazy.

At this moment, Qiao Hua finally understood that the reason why these big fish became so fat was not to rely on the cycle mode of "big fish eat small fish, small fish eat shrimp, and shrimp eat mud", but rely on the effect of these blue lights underwater.

Qiao Hua became more and more interested in the huge pit and the blue light emitted from it.

The reasons for the formation of this crater that he could think of were nothing more than a few possibilities: the explosion of combustible materials in the ground, the collapse of karst materials or loose debris, the impact of meteorites, etc. But none of this explains why it glows blue.

Qiao Hua remembered hearing that certain rare gems could shine at night, such as the Night Pearl. Could it be that there are some rare minerals stored at the bottom of this big crater, which is why this happens?

Unfortunately, no matter how precious the minerals are, they have no meaning in this era, and at best they can only attract some food for the underwater swimming fish.

That night, Qiao Hua slept under a big tree not far from this deep pit. Because he was afraid of being attacked by large animals, Qiao Hua didn't fall asleep until near dawn, and he still felt confused after waking up.

As soon as the dwarf tyrannosaurus got up from the ground, it felt something furry behind it, and it seemed to be still lying together rhythmically. It turned out that when he was asleep, the little squirrel pit jumped off the tree at some point, lay on his back and continued to sleep.

So Qiao Hua didn't bother the little squirrel, and lightly began his whole day's march.

From morning to noon, the dwarf tyrannosaurus met several guys much larger than himself along the way. However, because he had already heard the movement ahead, he had already crawled out of the grass before he could encounter the other party.

But what puzzled him was that after half a day of non-stop progress, he still couldn't break out of this strange area.

Nima, how big is this place where the grass and forests are rampant? (To be continued)