Qiao Yu's feet were wrapped in animal skins, and he walked south step by step, carrying the load.

She regretted that the time she had traveled through was too short. During this time, she was busy storing food for the winter and working to make a living, so she was unable to teach everyone how to sew animal skin boots.

"Yu, are the things you are carrying heavy? Why don't you put some over to me?" Shu looked at the skinny and small Qiao Yu carrying the load, and felt a little sorry for his niece.

Although he and Shan were brothers, they had each married and separated, and the wealth they had gained was kept separate, so he and Qiao Yu were considered two families in the tribe. Besides him, there were no adult males in his family, so he was also a participant in the transaction.

"Yes, yes, put some more here for us so you can pick less." Others also said.

In addition to each family's dried meat and animal hides, they also took out a few ceramic bowls and hairy yams. After the hairy yams were dug up, the women and children who had dug them received half, and the remaining half was handed over. Qiao Yu brought all of it out and prepared to trade it at the trade fair.

These raw potatoes were packed into the men's wicker baskets.

Besides the things in the baskets, the rattan baskets were also used for trading. The rattan baskets they carried on their shoulders were small rattan baskets inside large ones, one layer inside the other.

"Have you all forgotten how strong I am? Besides, the heavy potatoes are all with you." Qiao Yu said with a smile.

In her basket, besides the pottery bowls, there were also her family's own dried meat and animal skins.

Everyone was accustomed to mountain walking; carrying wild animals on their backs was commonplace. Today, carrying their loads on their shoulders didn't seem tiring at all, as everyone chatted and laughed along the way until dark, when they finally found a sheltered valley to rest.

"Hey, Yu, what are you doing?"

Shu was preparing his sleeping place when he heard the sound of a full moon. He turned around and saw Qiao Yu squatting in front of the stone wall, doing something unknown, and making a "da da da" sound with his hands.

Shu walked over and saw a log in front of Qiao Yu. A groove had been chiseled into the middle of the log, and some thin thatch was placed in the groove. Qiao Yu was holding a stick, which she had wrapped with vines. She pulled the vines up and down, and the tip of the stick began to rotate rapidly in the groove.

Qiao Yu was exerting his strength and ignored Man.

Shu was also confused and was about to ask when he saw smoke coming out of the wood in the groove. Qiao Yu stopped and leaned over to blow towards the smoke. The thatch became redder and redder, and suddenly there was a "boom" and a flame shot up.

Qiao Yu stopped, took some dry straw from the side, and put it on the flames to make the fire burn more vigorously.

When Man made the sound, everyone looked over with the same curiosity as the tree. Now, seeing the flames suddenly leap up, everyone's pupils suddenly dilated, their mouths opened wide, and their expressions were stunned.

After a long while, Mancai stammered, "Yu, how did you make the fire?"

Although he was the first to notice Qiao Yu's actions because he was paying attention to him, and watched the whole process of Qiao Yu lighting the fire, he still couldn't figure out how Qiao Yu made the fire.

Isn't fire sent down by the gods during thunder? To keep the fire burning, the elders of their tribe were extremely careful every day, fearing that if they accidentally extinguished the fire, the entire tribe would return to the miserable state of eating raw meat as their ancestors had.

They had heard many times from the elders how the entire tribe had died out due to diseases caused by eating raw meat.

They had no idea that humans could make fire from wood.

This is amazing.

Qiao Yu smiled and said, "Didn't you see it? It's just rubbing wood together. As long as you use enough force and move quickly, you can create sparks."

Even if she had participated in wilderness survival activities in modern times, she had never done such a thing as rubbing two sticks together to make fire. Fortunately, she had prepared for today's fire-making two days ago and had rehearsed it twice. Finally, she didn't embarrass herself and made a fire today.

Although she possessed lightning powers and could have created a fire by simply striking the thatch with lightning, the noise was too loud. Thunder during winter snowfall was unheard of, so it was best not to engage in such unnatural activities.

"The question is, how did you come up with the idea that fire could be created by rubbing wood together?" Man Ke was not so easily fooled and kept on getting to the key point.

Qiao Yu frowned and thought for a moment, then said to Man in an uncertain tone, "Because I'm smart?"

Full:"……"

Everyone:"……"

Well, they couldn't think of any other reason besides this.

"Hurry up, everyone, pick up some dry branches and start a fire." Qiao Yu said.

Everyone came to their senses and hurried to pick up dry branches nearby, feeling extremely happy as they did so.

They finally didn't have to endure the agonizing night after night. The return night was especially cold; without a fire and the thick animal skins they'd worn on their way, they couldn't sleep. Worried about getting sick, they had to get up and run around in the snow every once in a while to loosen up their frozen bodies. It was truly unbearable.

Now it's okay, there's fire to roast.

The ground was covered with dry branches, and everyone picked up a large pile of them in no time.

"Ah, this way we can save half a bowl of dried meat and don't have to go to the Sun Tribe to buy fire?" someone said.

Because of the snow, the torches went out after a short walk, leaving the tribes unable to carry fires outside. So, in order to stay warm, everyone in the Sun Tribe had to trade half a bowl of dried meat for a burning branch. The Sun Tribe traded a pile of dried meat for a fire each year—literally, dried meat was delivered to your doorstep.

Before Qiao Yu could say anything, several people objected: "No."

"I can't say."

"That's right, we can't save this little bit of dried meat." Man said, "Using wood to make fire was Yu's idea. It's unique to our tribe. If Yu used wood to make fire in public and others saw and copied him, wouldn't that be a huge loss?"

The man quickly slapped his mouth and said, "Yes, yes, I was confused. I can't save money. I can't save money."

Seeing that they had resolved the issue internally, Qiao Yu didn't say anything.

In this primitive society where the strong prey on the weak, she couldn't be too naive. The Sun Tribe could exchange a fire for a pile of dried meat, so she certainly couldn't give away the method of making fire for free.

She still needs to think carefully about how to use this to make profits in the future.