Nashen and Anna were both curious, but they could only follow Gervais to the edge of the puddle, and Nashen squatted down in the same way as Gervais.

I saw Gervais squat down, dip his finger in the puddle, and then put it in his mouth and savored it.

“？？？” Seeing the action, Nashen was even more strange, and he also learned to dip his fingers in the water and stuff them into his mouth.

"Phew! Bah! Bah! Bitter death! ”

As soon as Nashen put his fingers in his mouth, he felt a whole bitterness coming, and immediately began to spit out.

"Haha!"

Gervais was still immersed in his own thoughts, and only reacted when he heard Nashen's voice, knowing that Nashen was learning from his own way to react like this, he couldn't help laughing, why is this Nashen so funny sometimes.

"Lord Nashen, Anna! I'm going to get rich! ”

"My lord, what did you find? Could this water be a mine? ”

Hearing Gervais shouting excitedly, Anna was a little confused, and there was a small puddle in front of her, and Gervais just tasted it and said that he was going to get rich.

"Young Master Gervais, this water is so bitter, it shouldn't be a good thing, how can you get rich?"

Nashen was also confused, Anna was better, she didn't learn Gervais's movements, but Nashen was motivated by curiosity, and learned from Gervais to taste the water in the puddle, and the result was very bitter, such bitter water, he didn't know how to make a fortune, and he hadn't heard of any bitter water that could be sold for money for so many years.

"Haha, you'll know later, Anna, now go and tell Thomas to bring three men over, and bring a cauldron of boiling water, firewood, linen cloth for straining things, and tools for digging the earth."

Seeing that the two didn't understand and didn't tell them directly, this kind of thing couldn't be explained to them, so he simply sold it and directly told Anna to prepare tools.

"Yes, sir!"

Anna was not angry when she saw that her adult was selling Guanzi, but felt that her own adult was really smart, and she was stupid and couldn't guess what the adult thought.

"Master Gervais, is that mine in this cave?"

Nashen didn't know that Anna, out of blind worship of Gervais, had lowered his IQ and become a green leaf to foil Gervais.

"I guess it might be, but I'm not sure yet, I'll know when the tools are available."

Gervais shook his head, although he was eighty percent sure that the contents of the cave were an incredible mineral on earth, he was not sure that the minerals in the space were exactly the same.

Nashen still looked puzzled, but since Gervais said so, he stopped asking, and had to crouch quietly beside Gervais to wait and see.

"My lord, I've got something!"

A few minutes later, led by Anna, Thomas and the three servants entered the cave, and Gervais took everything he had said.

"Very good, put the tools here!" Gervais hurriedly got up and instructed the servants to place the tools next to the puddle,

"Build a makeshift stove and make a fire, and then put this pot on top and boil it later."

While instructing everyone, Gervais personally picked up the hoe for digging and walked to the side, and swung a few hoes towards the ground, presumably because the ground in the cave was very soft due to the long-term dampness, and Gervais threw out a large pile of dirt after only a few swings.

"My lord, I'll dig it for you!"

Several servants were building the stove there, and Thomas, seeing that his master was digging, immediately came over and wanted to take the hoe from Gervais's hand.

"No need Thomas, it's already dug up, you can put all this dirt in that puddle!"

Gervais personally dug just to see how thick the soil layer in the cave was, and he dug a few hoes with his fighting spirit, and he had dug to a depth of more than one meter, and the result made him very excited, the soil layer was not yet in the end, which showed that if it was really what he expected, the reserves were not low.

"Yes, sir."

When Thomas put the dirt into the puddle, Gervais directly instructed the servants to stir it with a hoe to completely melt all the dirt into the water.

When the water in the puddle cleared a little, Gervais asked them to put a strip of filtered cloth over the mouth of the pot, scoop half a pot of water from the puddle, and put it on the stove to boil.

As the minutes passed, everyone remained silent, looking at the pot curiously, they really didn't know what Gervais was going to do.

Gervais stood calmly beside the cauldron and observed, as the water in the pot slowly dried up, white crystals began to appear on the rim of the pot.

"Huh!"

"My lord, there's something white in the pot!"

"Master Gervais, how can white crystals appear when this water is boiled?"

There were only three people in the field who could speak freely beside Gervais, Anna, Nashen and Thomas, and the three of them saw the changes in the cauldron, and they all asked in unison. The sight in the pot was something they had never seen before, and when the water boiled, didn't it just bubble?

"Haha, it's done, this time I'm rich, Anna will let you eat something good later!"

Gervais also saw the changes in the pot, and immediately laughed excitedly, and when he saw the white items on the edge of the pot, he finally confirmed his suspicion, the contents of the pot could not only bring him great wealth, but also maybe bring good combat power to his territory.

"What's in the pot is called nitrate! Something very peculiar! You'll find out later! ”

Gervais couldn't explain to them what nitrate was, there was no nitrate in this world, let alone gunpowder, but there was sulfur, because many people in this world were not hygienic, and some skin diseases would arise over time, and sulfur had a good effect on skin diseases, and Gervais had seen it in Gandalf, and it was a commonly used item in this world.

With nitrate, you can make ice, and you can also try to prepare gunpowder, so you can't help Gervais so ecstatic, one of Gervais's hobbies in his previous life is to read online articles, although online articles are not nutritious, but these little common sense has learned a lot, the ratio of gunpowder, saltpeter ice, these simple things he remembers very clearly.

When the pot was almost boiled, Gervais ordered the servants to extinguish the fire, and when the fire was extinguished and the smoke dissipated, he saw that the iron pot was already a transparent crystal with white flowers and some brine, obviously the nitrate content in the cave here was very high, and only half a pot of water could reach this level.

"Thomas, now you take the three of them to dig in the open space outside the cave to see if there are any other minerals, dig a pit more than ten meters deep, dig more than one meter deep."

Being able to get nitrate is already a surprise for Gervais, and Gervais can't wait to go outside the space to try making ice, but Gervais is not sure if the mine in this space is only nitrate, after all, this thing was obtained after boiling it himself, so he specially instructed Thomas to check and confirm.

"Yes, sir!"

Thomas hurriedly replied that as a housekeeper, he didn't have to do his own work, he just had to supervise here, a pit of dozens of meters, with three servants, and he would soon be able to probe it.

After the matter was explained, Gervais did not delay any longer, and happily walked out of the cave with the iron pot in his arms, heading to the exit of the space.

Regardless of whether Thomas can find other minerals or not, Gervais is now very satisfied, and if anyone gives him a silver mine of the same space now, he will not change it.