The cave not far from Lin Feng was about ten meters wide, and the ground in front of the cave showed yellow earth, and the ground was bare, without any plants. Bursts of white smoke continued to rise from the entrance of the cave, drifting towards the sky above.

"Could it be that the temperature here is so high, is it caused by this cave?"

Looking at the cave with white smoke in front of him, Lin Feng secretly said in his heart.

Looking around, apart from this explanation, Lin Feng couldn't think of any other reason. Along the way, the surrounding temperature was obviously very abnormal, and this abnormality was mostly related to the cave in front of him in Lin Feng's opinion.

At this moment, Lin Feng felt something strange in the sky. Raising his head, Lin Feng was startled.

A three-headed blood bat about ten meters long appeared above Lin Feng, but apparently he hadn't found Lin Feng at the junction of the woods and the clearing.

Without hesitation, seeing that the direction of the three-headed blood bat was facing away from him, Lin Feng hurriedly rushed towards the direction of the cave, and tried his best to control the weight of his steps to avoid making a sound. Lin Feng's geographical location just now was too leaky, and the three-headed blood bat would soon find out about him.

At this time, Lin Feng didn't care if there would be any danger in the cave, he had to quickly dodge before the three blood bats found him.

The ordinary three-headed blood bats seen in the Tianlong base before were all five or six meters long, and their strength was already about the same as that of a third-level zombie. And the strength of the seven- or eight-meter-long three-headed blood bat that flew here with Lin Feng before was already between level three and four.

And now the three-headed blood bat above Lin Feng looked more than ten meters, if the strength of this three-headed blood bat was really calculated according to its size, the strength of this three-headed blood bat would probably reach the level of a fourth-level zombie.

Moreover, the three-headed blood bat is not the same as the zombie, the fourth-level zombie will only attack physically, and only the zombies above the fourth-level zombie may have other forms of attack. And mutant beasts and zombies are different, the strength of mutant beasts that have reached level four is similar to that of level five zombies, and they will also have multiple attack types, which is why mutant beasts are generally higher than zombies of the same level in terms of strength.

With Lin Feng's current strength, it was barely enough to deal with the three-headed blood bat that was seven or eight meters before, but it would be very difficult to deal with a fourth-level zombie and a mutant beast of the same strength. Even if the beast soul of the mutant beast was very tempting, Lin Feng would not take such a risk to try. Having seen three blood bats spit out fireballs before, Lin Feng was reluctant to try the power of fireballs.

Fortunately, the three-headed blood bat didn't find Lin Feng on land, but for some reason, it was always hovering in the air above. Lin Feng, who entered the cave, carefully poked his head out and looked at it for a long time, but he didn't see that the three-headed blood bat had the intention of leaving.

"Will there be another exit from this cave?"

It was no longer realistic to go out from here, if the three-headed blood bat didn't leave, Lin Feng might be in great danger if he was discovered. The cave was very wide and deep, and Lin Feng didn't know if there could be other exits in this cave to avoid the three blood bats in the sky.

Taking out the strong light concentrating flashlight from the apocalyptic table, Lin Feng began to look at the cave in front of him.

The cave is very spacious, with dozens of square meters, except for the wide flat land that has just entered the cave, a three-meter-wide deep cave leads straight to the depths of Shandong.

Walking along the cave, Lin Feng was always vigilant. Hold the blackiron bayonet in your hand tightly for the event of an emergency.

The cave is deep and very wet. The stalactites above are exposed to too much steam and continue to drip water, which gradually forms a small stream of water that flows towards the depths of the cave.

From the direction of the water flow, it can be seen that as Lin Feng advances, the terrain is getting lower and lower. This feeling is not very obvious when walking, but it is there.

After walking for more than ten minutes, Lin Feng felt that the temperature around him was gradually rising, and it was much hotter than outside.

"It can't be a crater!"

While walking, Lin Feng secretly guessed.

In this case, perhaps only the crater can explain the current temperature around you. But if it's a crater, there should be another way out. After all, the cave that Lin Feng was walking in now was relatively narrow, not like the main exit of the crater.

Suddenly, Lin Feng found a scorpion lying on the wall in front of him.

This scorpion was a little different from what Lin Feng had seen before, it was red all over, about the size of a palm. Although there was no contact, Lin Feng could feel that its shell was extremely hard, and the bright light of the flashlight hit its body, and it could even reflect the light.

A pair of pincers is almost half the size of its size, and it is clearly not intended for vegetarian use. And there is also a tail on the tail, which is of a hook type.

Although the scorpion was not big, Lin Feng would not despise it at all. For unknown things, Lin Feng's attitude is cautious. The reason why Lin Feng was able to injure Feng Si before was because of Feng Si's contempt for Lin Feng. Whether the red scorpion in front of him was highly poisonous or something else that could pose a threat to people, Lin Feng didn't know.

The width of the cave is only three meters, and it is obviously impossible to walk through it without startling the snake. Trying to get past is bound to alarm the scorpion a few meters away, and there is no other way.

Behind was a ten-meter-long three-headed blood bat, and in front was a palm-sized red scorpion, between the two, Lin Feng quickly chose the latter.

Taking out the pulse rifle from the doomsday table and aiming at the red scorpion a few meters away, Lin Feng gently pulled the trigger.

"Smack!"

After a single gunshot, the pulse bullet hit the red scorpion in the head. The scorpion shook and then stopped moving.

It seemed that the gun was still able to penetrate the shell of the scorpion, and after seeing that the scorpion was killed with one shot, Lin Feng breathed a sigh of relief.

The red liquid flowed out of the scorpion's wound, and something shocking happened, the liquid squeaked to the ground and emitted white smoke.

The temperature of the scorpion's body fluids was so high that it actually burned all the stones below him red, which Lin Feng never expected no matter what.

Now Lin Feng was a little glad that he hadn't walked directly past it just now, in case this scorpion could spew out body fluids as a means of attack, Lin Feng would be unlucky.

But fortunately, the gun was able to kill the scorpion, and Lin Feng did not receive the pulse gun into the doomsday table, but stuck the strong flashlight onto the card slot of the pulse gun, ready to move on.

But just when Lin Feng had just taken a few steps, Lin Feng heard a sound similar to that of insects crawling.