Because he was worried that the dinosaur or the owner of the bird's nest would return if it was very large, Shi Leiyin increased his engineering speed to the maximum, and among the soil bulbs dragged back by the doppelganger, those soil bulbs that were removed after germination were directly sent into the stomach by Shi Leiyin and converted into energy. And this energy was used by Shi Leiyin to quickly freeze the tree hole. With Shi Leiyin not scrupling about the speed of consumption, it only took four or five hours to complete the freezing of the entire tree hole, and the ice wall on the side of the bird's nest was basically completed, waiting to continue to thicken.

After completing the sealing of the tree hole with the main body, the clone continued to stay outside. This time the seal, Shi Leiyin learned the previous lesson, and directly blocked the entrance to the tree hole with heavy ice, leaving only a small part for ventilation and the entry and exit of the clone. On the outside, the clone used the snowdrift created by the previous battle to block the entrance behind a snowdrift four or five meters high. Generally, small animals want to enter the tree hole, they must first climb up the snowdrift, and then descend to the mouth of the cave, and climb in above the ice block at the mouth of the cave, without any similar food on the way, basically cutting off the possibility of small animals inadvertently breaking in.

By the time the entrance to the cave was completely completed, the time had completely entered the night. As a result of a series of events, Shui Jing fell asleep as Shi Leiyin built the ice wall that isolated the cave near the bird's nest. Shui Jing still maintained the form of the little girl, sleeping with Zilde face to face was like a golden boy and a girl, while Jieliya was lying in Zilde's arms, which was the only warm place.

Noticing Zilde curling up and trembling slightly and Jie Liya unconsciously burrowing into Zilde's arms, Shi Leiyin remembered that he hadn't lit the fire today, and he hadn't built a small snow room that could barely keep warm. Fortunately, there were dried vines and some needles everywhere in the vine hole, and Shi Leiyin collected a little bit and put together a lot of fuel. To Shi Leiyin's surprise, although this kind of vine is shriveled like a piece of wood, it is very flame-resistant, and when it burns, there is no smoke or fire, but the surface of the vine reveals a flame that symbolizes burning, which makes Shi Leiyin almost think that what he is collecting is not a dry vine, but a coal in the shape of a vine. However, although the vine burns like coal, the temperature is not comparable to that of coal, and the heat emitted by burning leaves and dead wood is not much different. In addition to the dry vines, those needles are also out of Shi Leiyin's common sense, the writing needles are impressively stored in a lot of oil, after being baked by the heat emitted by the vines, all the oil seeps out, and then when it encounters the parts of the vines that emit this red light, it is ignited at once, and the flame of this grease is actually with this trace of blue, and the temperature is very high. Because Shi Leiyin didn't know that the needles contained oil, he added a large handful to it for the first time, but after the grease was ignited, not only did the flames run fiercely, but also burned a hole in the small snow house that Shi Leiyin had built so hard. Fortunately, Shi Leiyin was planning to go out at this time to wake up Shui Jing a few times and let them sleep in the snow room, so that they were not burned by the suddenly larger flames.

Although the igloo was burned, the fire was not wasted, and like the dried vines, the grease of the needles was also very flame-resistant, and the flame kept a strong momentum, making a large circle around the fire warm. Zird and Jieliya, who were forcibly woken up by Shi Leiyin, did not complain that not even sleeping was child abuse, and happily turned into a fire in the fire.

Although there was no smoke when the dried vines burned, there was still some oil smoke after the needles were burned, and it didn't take long for the air in the nearly closed tree hole to become a little cloudy. In desperation, Shi Leiyin had no choice but to stop the production of the second igloo and open a gap at the top of the tree hole for smoke exhaust. This gap is to use the existing cracks in the vine trees, Shi Leiyin slightly adjusted the size of the gap, so that it becomes relatively straight, so that the smoke can be dispersed, but because there is no exhaust facility, even if there is a chimney, it can only maintain the air in the tree hole from becoming worse. If you want to return to your previous state, you can only wait for the fire to be extinguished and open the mouth of the cave to ventilate at both ends.

Fortunately, even if the air quality in the cave itself can't be improved, the air quality in Shi Leiyin's newly built igloo can. There was a lesson in the ignition of a tree hole. Shi Leiyin simply connected the second igloo with a ventilation pipe and another tree hole, so that the air quality in the snow room was much better than in the tree hole.

At the same time, with his previous experience, Shi Leiyin only lit a small fire in the igloo with dry vines, and after the temperature of the igloo was almost slightly warmer, he drove Zilde and Geria into the igloo to sleep.

While extinguishing the fire outside, Shi Leiyin ran into some trouble slightly. I don't know if it's a dry vine or a coniferous grease or both, when Shi Leiyin habitually covered the entire fire with a large pile of snow, although the open flame was extinguished, the snowdrift was quickly melted, and then the fire flashed, and the fire continued to burn unrelentingly from the melted hole in the snowdrift. So Shi Leiyin had to use a snowdrift to extinguish the open fire first, and then keep filling the melted area with some snow, until the melted snow water completely soaked the entire fire, and then the fire was extinguished.

After extinguishing the fire, Shi Leiyin controlled the clone to reopen the hole in the tree hole that had been sealed not long ago, and Shi Leiyin himself opened a small hole in the hole at the other end that had been sealed when he entered the tree hole. As soon as the openings on both sides of the cave were opened, the temperature difference between the inside and outside immediately brought in the cold fresh air outside the tree hole, and at the same time, it also brought out the air that had become a little turbid. After about ten minutes of wind, Shi Leiyin blocked the hole again. However, he only used a piece of snow that was not too thick to fill the small hole, because it really took Shi Leiyin a lot of effort to reopen it before, and since he still had to live in this tree hole for a while, this vent was still kept for the time being. As for the hole on the side of the clone, Shi Leiyin even more simply inserted the pond that he had just made out of the fire pile, and the current ice cube was directly inserted into the hole after the clone was expanded, and it was almost recovered.

After all the things were done, Shi Leiyin also felt a little tired. This feeling of exhaustion does not come from the body, in fact, after becoming a slime, Shi Leiyin will only have a feeling of lack of energy and no feeling of tiredness or exhaustion. Now I feel tired purely mentally. From the time he met the Prison Wolf Dragon at noon until now, Shi Leiyin's spirit has almost been in a state of high use, not only to analyze the situation, but also to manipulate the actions of the clone, which has greatly consumed Shi Leiyin's mental power, so he really feels tired. However, Shi Leiyin enjoyed the tiredness a little, because it was a bit like the feeling he had when he was on Earth before, because he stayed up late to read. The time he has been in this world has been getting longer and longer, and Shi Leiyin has become more and more unable to remember his previous life as a human, and now this feeling just makes him relive the feeling when he was a human.

"Human, or slime? That's the question," Shrein laughed to himself, leaning on the igloo and falling asleep.