Yuan Feiyu discovered that a large piece of stone was moved away from the other half of the cave. Inside the stone cave, he could clearly see that there was a crimson red jade-like hole. Cold air was coming out from the hole. The ground seemed to be covered in ice, and the meat was hanging in that hole. It seemed to be completely frozen.

Clearly, it had always used this method to keep its food fresh. The food was preserved even better than he had imagined. The most important thing was that there was a bottomless cave in the middle of the cave. The smoke from the fire in the cave in front of them all ran down the cave from hitting the top of a stalactite stone. Therefore, there was a large temperature difference between the front and the back of the cave. In the front, he could make smoked meat, but in the back, he could make cold storage. Most importantly, the cold storage was not closed.

This was not scientific!

However, Yuan Feiyu was not a scientific researcher either. After studying for a while, she still decided to go cook.

China's universal military spade has been burned to smithereens, in the lunch box in the cooling oil into a simple container made of lotus leaves, has accumulated a lot.

The skin of a cat with long teeth was very good. The meat of that kind of cat was too stinky and too hard for her to eat. The birdman only hunted two. But the leather was good. However, this feline was about the same size as a modern cat, and two pieces of fur was really too few. The birdman liked the wild boar with the yellow belt. It had hunted more than ten of these, but most of them were moles.

The moles had good skins, too, and they should have been better dressed than the feline, but now she wanted to make a long fur coat that would fit the quilt. Longtooth cats can't do it, and it's good to try with moleskin first.

She tried to use the stone to scrape the remaining yellow grease from the mole's skin. It took her four or five hours to make the first one, then she rubbed it with the finer powder and tried to soak it up as much as possible. She wanted to cook it again. After all, this thing would be disgusting if it had a bug. She couldn't cook. She smoked until it was dry, which made the leather harder and less comfortable, but at least it made her feel better. They were too annoying!

For the time being, though, she did not find flies in this place. But I've seen little bugs. However, there weren't many species. She had seen something that resembled a watermelon insect, a cartilage worm that resembled a water chick, and a multi-legged bug. She didn't know if this was a centipede or not. The cliffs here had a strange smell. She could not say it, but sometimes she would feel a slightly pungent feeling from lighting a fire. "Maybe that's why the species are so small.

She didn't know where the golden birdman went to hunt, but looking at the time it spent hunting, she knew that it was definitely not a short journey. After all, it was moving at such high speeds.

If he thought about it carefully, it seemed that this forest was really suitable for human survival. The temperature and humidity were both suitable, no pests or animals, it would be quiet and comfortable. If he fell into a real primeval forest, he probably wouldn't be able to live past this time.

It seemed that the animal skin that was used for selling stone in the ash-grey stone powder was not bad after being made by a beginner like her. There was no smell, no bugs.