Ghost Jiu hurriedly opened his palm, letting the green light leak out, and as the green light flowed out, the insects retreated a few meters away, and as the insects retreated, Shu'er also stopped shaking.

The geology of Jingdong Great Cave is relatively old, the sedimentary rocks were formed in 1.5 billion years, and the karst structures were formed in succession in later geological changes. And there is such a strange karst cave at a depth of 1,500 meters under the karst terrain, and there are such strange insects, so does this insect exist at the same time as the rock for hundreds of millions of years!

However, the bigger question mark in Onehisa's heart is not the glowing bug, but the current temperature. Onehisa's concept of the change in formation temperature with depth was heard from a relative who studied mining. There are three temperature change layers in the strata, one is the surface to 30 meters underground, the deepest 100 meters is the layer affected by the temperature change of the ground, the second is the constant temperature layer 30 to 100 meters underground, and the third is the layer affected by the internal temperature of the earth further down. From the thermostat downwards, the temperature generally rises by about 3 degrees per 100 meters.

If this is calculated, the temperature of Onijiu is now at a depth of more than 1,500 meters, and the temperature must be at least minus 60 °C. At such a temperature, how can those insects that are afraid of heat survive, and how can they make the surrounding temperature so cold through their own cold light?

Onihisa raised his head and looked at the top of the cave, which was about 20 meters above the ground, and was also covered with dense light insects, like bright stars in the sky as the insects jumped. Onihisa's gaze moved over the roof of the cave, and at a point where it intersected with the cave wall, he found a hole opening. If you look at the location of yourself and Shu'er, if you calculate the parabola that slipped down, it should be the hole where we fell. Looks like you're going to have to find a way to get out of here.

Onihisa looked around at the cave walls, which were all smooth crystals, and there was nothing suitable for climbing. It looks like I'm going to die here this time. Although he thought so in his heart, his facial expression was not revealed, because Onijiu didn't want to add more fear to this girl who had just escaped from the snake.

Shu'er's messy long hair should be blocked in front of her face, as if she didn't mean to arrange her hair to the sides at all, which may be a distrust and precaution for Onijiu.

Oniku grabbed her left hand, and she reflexively pulled it back, then took two steps back.

"I'm going to let you hold the greenstone for a while, don't be afraid"

"Oh, thank you, thank you" Shu'er heard Ghost Jiu say this, calmed down, and actually said five words in a row!

She hesitated for a moment, but still walked over to the ghost and stretched out her right hand to take the greenstone, but she only dragged it with her hand, not holding it in her hand, it seemed that she was afraid of covering the light emitted by the greenstone. Oni Jiu secretly thought to herself, it seemed that she had completely recovered from the shock in the snake cave, and her current actions and words were completely normal human reactions. Onijiu suddenly realized that she was recovering so quickly, could it have something to do with this greenstone!

Thinking of this, Onijiu noticed that since he touched the greenstone just now, the hunger he used to have was gone, and after such a long time of tossing, he didn't even feel tired, it seems that this greenstone must be the effect. Onehisa has not done any research on the science of radiation and energy, and he can't understand why a small stone can have such a role, but there are countless things in this world that Kihisa does not understand, and in the face of nature, the entire human race is just an ignorant ant.

Onehisa plans to look around to see if he can find any miracles. However, the cold current around him is too strong, and he can't leave the greenstone for too long, but there is only one stone, and the ghost has to think of a way to get the best of both worlds.

Shu'er watched Ghost Jiu touch around, and seemed to have comprehended Ghost Jiu's intentions. He stretched out his right hand dragging the greenstone, and then stretched out his left hand and pointed at Onijiu's left hand. Seeing that she took the initiative to cooperate with her, Onijiu stretched out his left hand and dragged her right hand. Then he pointed ahead and carefully guided her forward. The greenstone* lightworm gave way to a path, and the two of them circled around the crystal ground with a radius of more than 500 square meters, looking for a way to climb up the cave wall. Oni Jiu stroked the cave wall with his right hand, and found that the cave wall was very smooth, and when he looked closely, he was very shocked, this was clearly the best white crystal with good water. Oniku looked around, and the entire cave walls and ground were covered with this type of high-grade crystal. If this mine can be developed, the value can be imagined.

"Look" Shu'er pointed to the cave wall in front of her, and Oni Jiu looked in the direction of her finger, a cloud of blue light flickering faintly on the cave wall more than 2 meters away. There is a difference between this blue light and the light emitted by the light bugs, although the light insects also emit blue light, but the light emitted by the light bugs is the kind of dazzling light, and this blue light does not have that kind of light, but looks very soft and not a little aggressive. Akihisa moved cautiously towards it in surprise, and the blue light did not dodge the green light in their hands like other light bugs. When we were only half a meter away from the blue light, suddenly this blue light swooped towards the greenstone we were dragging with us. Shu'er didn't react for a while, and it was too late for the ghost to turn over his hand to grab the greenstone, and with a cloud of blue light passing through his hand, the greenstone had disappeared. Then the blue light fell to the ground more than two meters away, and then Oniku finally saw its face clearly, it turned out to be a small mouse, but it didn't have long hair, and its two front paws were holding our greenstone. Oni Jiu motioned to Shu'er not to move, and then moved over cautiously little by little, and the little mouse did not run away immediately, but stared at Oni Jiu with two small eyes, looking thoughtful.

Just as Oniku's hand was about to touch it, the little mouse squeaked, turned around and jumped out like an arrow, and its hind legs moved rapidly in the form of a human run. Onihisa grabbed Shu'er's arm and ran after the little mouse, who knew that if he didn't run with the mouse, he would be devoured by light worms.

The blue light and the green light alternately drew a passage and floated forward quickly, Oni Jiu and Shu'er distanced themselves from the mouse, and the light insects around us found that we had no green light in our hands, and swarmed and pounced, and the cold suddenly hit, and Oni Jiu instantly felt that his hands and face were exposed outside his clothes and hurt like a knife.

In a hurry, he glanced at Shu'er out of the corner of his eye, and his face was full of messy hair, and he couldn't see her expression, but the tremor in his arm explained her condition. There is only one thought in Onihisa's brain now, and that is "run". Looking at the little mouse that jumped out more than 20 meters away, every second of his hesitation would bring us closer to death faster. The speed of the light worms around us has increased significantly, and the nearest right side is only 5 meters away, and once the road behind the rats is sealed, we have no hope of survival.

Oni Jiu pulled Shu'er desperately and ran forward like crazy. The potential of the human being was stimulated at this moment, and Onehisa clearly felt that his running speed was more than twice as fast as usual. However, the freezing sensation seems to come faster than the heat emitted by his own running, and before he ran 10 meters, Onihisa found that the tingling sensation had been replaced by numbness, and he was now just doing a mechanical action of conditioned reflex, and it was not his own brain consciousness that controlled his legs at all. The arm that dragged Shu'er became heavier and heavier, and only then did he find that Shu'er was almost unable to walk, and was completely dragged forward by the ghost. Onihisa realizes that the chances of getting out alive are almost slim, and if he is eaten by light insects, he will not even have a chance to become a fossil in the future. Life is so impermanent, and how fantastical, I never dreamed that I would be buried more than 1,500 meters underground, and I would die so tragically.

Just when the ghost was unwilling to die, he was suddenly pleasantly surprised to find that the surrounding light insects had stopped outflanking and continued to scatter in all directions. Surprised, Oni was surprised to see a yellow light shooting quickly from the front. Oni Jiu tried to dodge, but immediately almost had fun, it turned out to be a little mouse with a blue light holding the green stone and folding it back.

Could it be that the little mouse is telepathic, has received his own desperate signals, and then comes back to save us! Can humans and rats communicate with each other? Ghosts have not been encountered in the overworld for a long time, so it's really hard to say in this fantasy underground world.

As the light insects retreated, the cold felt much lessened, and Shu'er resumed her movements, staggering to her feet. The little mouse stopped more than 2 meters in front of him, the blue light in his eyes suddenly increased, and his bare body immediately showed a sapphire blue light, which was no longer as soft as before.

The ghost stared at it for a long time, observing its intentions. The little mouse slowly lowered the greenstone from his front paws, and then the old monk crouched there in a calm manner. Oni Jiu tentatively moved a small step forward, the mouse did not react, and moved one more step, the mouse still did not react, Oni Jiu's heart throbbed, the green stone was in front of him, as long as he took another big step, he could reach it. Ghost Jiu's heart was already beating to his throat, and he stretched out his arm with some trembling as he took a step that would determine life and death......