He took the stone from the old man's hand, built another pile of flammable grass, and slowly lit the grass with a flint. Only then did he believe that there really was a master among the people.

He is a frog in the well. He cannot control his facial expressions well and even dares to doubt others. It seems that what he did to his maternal grandparents' family before was really disgusting. Thinking of this, he suddenly felt a little disgusted with himself. If he was not disgusting, his maternal grandparents would probably treat him well.

"Grandfather, what if we don't have a tinderbox or a flint in the wild? Do we have to rub two sticks together to make fire? But my hands don't seem to be able to do that."

With just a couple of drills with his tender claws, his hands would probably be crippled before the wood even catches fire. He might have the endurance, but if his hands were injured from drilling wood to make fire, he probably wouldn't be able to do anything.

"There's no other solution. Perhaps you can look for fire left outside, but the chances are slim. So when you go out, try to bring flint and tinder with you. That's the easiest way."

The old man also thought about it, and it seemed that there was no other way. Most of the people now used flints and tinders. Tinders were used by wealthy families, while flints were more common, but not as light as tinders. His granddaughter had three tinders, which were all good things he had saved.

Wang Shiyu kept fiddling with some black things, so Zhou Qingyun didn't dare to get close to her. Especially when he smelled the pungent smell, he moved further away from Wang Shiyu and didn't even dare to get close to her. He was familiar with the smell, and naturally he remembered the explosion that day.

Because it was the old man who would watch Wang Shiyu for a while when he had nothing to do, to see her ratio. He seemed to know what his granddaughter wanted to do. If the formula of this earth mine was not mixed well, it would turn into a large firework without any lethality. Only people who knew the ratio could make it. This kind of earth mine was generally made by people who would be directly recruited by the royal family or directly worshipped as soon as they appeared. It would not be circulated among the people. It was estimated that the formula was obtained from that place.