Then he looked up and discovered something: there was a huge crack on the rock wall he was climbing. The crack was not obvious when viewed from below, but when he was climbing on it in person, he realized that the crack was quite amazing. It stretched diagonally for thirty or forty meters, as if it was almost tearing the rock wall apart.

That was fine, but the point was that when Lin was climbing, his fingers would inevitably grab any reliable cracks, and after his fingers were inserted into the crack for about five or six centimeters, they touched a completely different texture, at least it was clearly different from the touch of rock, hard, rough, but with a strange temperature, like human body temperature! But no one's body temperature is high.

"What is this?" Lin couldn't help but be curious. "Wood? Fossil? Rubber? No, no, no, none of them."

His curiosity was aroused at this moment, and there happened to be a protruding stone next to him that could be used as a platform, so he nimbly climbed over and stood on the platform. On the one hand, he intended to take a rest, and on the other hand, he intended to thoroughly explore the matter to see what secrets were hidden in this huge crack.

According to Lin's current strength, the huge crack in front of him would definitely not be a problem for him. He took out a long pen made of solid steel, used it as a chisel, and chiseled the crack in front of him bit by bit. In this way, the rock crack in front of him soon became wider, and it was no longer enough to just fit a finger in, but the entire palm could be inserted into it.

Then, Lin, who was covered in dust, took out something from the huge crack! He looked carefully and found that it was half a broken claw! ! The claw was about half a meter long, showing yellow and red colors. The broken part was torn, but it exuded a kind of majestic power, just like a crown with natural powerful properties.

Lin frowned as he looked at the broken claw, then turned his head to look at the towering mountain wall in front of him, and the rock crack that looked like a wound. Combined with the half claw remaining in the crack, he, who was very experienced in combat, gradually imagined a shocking and suffocating scene in his mind...

In this vast underground space, a fierce fight to the death is taking place between two enemies that are capable of aerial combat. One of them should be a dragon and has the bloodline of a red dragon (inferred from the warmth still on the broken claw).

Suddenly, the dragon suffered a severe blow and let out a shrill wail. Hot blood splattered from the sky, and it could no longer maintain its majestic posture of soaring in the sky. It spun and slid down, flapping its wings unwillingly and violently.

At this time, it was attacked again, and its whole body fell like a burning meteor, sweeping across the towering mountain wall. Its wings were still flapping instinctively. At this time, the dragon claws on its wings scratched across the mountain wall, and the hard stone wall was quickly torn into a long crack under the claws of the dragon claws. But when it fell at last, half of the dragon claw was broken in it due to the huge force. However, for this giant beast, such injuries were not worth mentioning at all, because its life fire was about to be extinguished.

Following the direction of the crack, Lin narrowed his eyes slightly and looked in that direction, but he saw only deep darkness. However, he knew very well that if his guess was correct, he would find the remains of a dragon there...

After a slight hesitation, Lin decisively climbed in that direction. It was very difficult for an ordinary person to do this, but for a professional like Lin, it was not that difficult as long as he did not spare his physical strength.

Regarding this matter, Lin not only wanted to verify whether his inference was correct, but also because he was already well aware of the dangers in Yuelun Mountain. So if he could find more clues, and then wipe away the dust of history and obtain more truth, it would be worth it, because he was not in a hurry.

However, in this dark underground rift, even with a rough direction and goal, it is definitely not an easy task to find the remains. Lin Xia also spent a lot of time, and several times he even grabbed loose rocks during the climbing process and was in danger. If he was an ordinary person, or even a professional with weaker strength, he might be seriously injured or buried here...

Finally, under an L-shaped cliff, the panting Lin finally saw what he was looking for under the light of the torch. When everything in front of him came into Lin's eyes, he was shocked all of a sudden. He was stunned for several minutes before he came to his senses:

"How...how could this be possible!!"

…

"We have now entered the Imperial Proving Grounds."

After looking at the mud under his feet, Holmes shouted to the people in the team.

After being verbally reprimanded by Du Yuqi, Holmes became much more proactive and began to perform his duties along the way, acting as a half-guide.

At this time, she pointed to the soil and explained:

"In the beginning, the Bilmark Empire Test Site was clearly enclosed by a wall, and no one was allowed to enter or leave at will. However, as the site was abandoned, there happened to be a large amount of metal material in the wall, so it was quickly stolen and dismantled."

"At the same time, the creatures in the Bilmark Empire's test site are already significantly different from the original species, so according to the original design, their living environment, food plants, and even water sources and soil have been artificially modified, with some special elements added. This purple-red soil is extremely rare even in the entire Arad continent, so as long as you see this iconic soil color, it means you have arrived at the Empire's test site."

Now that they had come to the Imperial Test Site and had witnessed the fierce battle last night, they had all paid extra attention and were extremely careful. After walking a few kilometers inside, they could suddenly feel that although the plants in the test site were still the same as those deep in Loran, their colors had become noticeably darker, and many of the plants had become huge. Many vines were intertwined and coiled like giant pythons, and some trees just stood there alone, giving people the feeling of blocking out the sky, as if a single tree formed a forest.

At the same time, the creatures here all seem to be very aggressive. Du Yuqi just went to the side to urinate when he saw a gray mantis jumping up to catch a butterfly. Normally, the mantis must have successfully caught the butterfly and killed it, but what happened next stunned Du Yuqi. The butterfly spread its wings and dodged the mantis's attack, but it did not fly far and stopped again. Then the mantis continued to attack, and the butterfly continued to fly away...

Seeing all this, Du Yuqi felt a little puzzled. Why? Because the insect world is actually very jungle, all their activities follow two cores, survival and reproduction, and for this butterfly, repeating this teasing behavior is meaningless to it, because the mantis can fail many times and only needs to succeed once, but this butterfly cannot fail even once!

However, Du Yuqi's confusion was soon answered. When the mantis pounced for the fourth time, it missed as usual, but it staggered when it landed, and then fell to the ground and began to tremble, looking as if it had suffered a serious injury.

At this time, Jet had walked over without knowing when, and looked at this scene with some surprise and said:

"Could this be the legendary hawk butterfly? It is a rare carnivorous butterfly that relies entirely on hunting other insects to survive! So to other insects, it is as scary as a falcon."

Du Yuqi was stunned for a moment and said:

"Why are you here?"

Jeter said:

"Everyone has seen you being quiet for too long, so let me see what's going on."

Du Yuqi said:

"You are more familiar with the wild world. Tell me how this mantis was ambushed."

Jeter said:

"I think it should be the poison powder on the butterfly's wings. When it takes off, it will deliberately shake its wings violently, so the poison powder on the wings will be released, and the praying mantis will inhale it. At the beginning, the amount of poison powder inhaled was small, so it would not cause too serious consequences. But after a few times, the toxins accumulated to a certain level, and naturally the praying mantis, which was originally a hunter, became the prey."