Donner walked down the path on the island, smiling and greeting the aunt he met. More than half a month has passed since he came to Crescent Island, and Donner has gradually become familiar with the environment here.

Unlike the iron mines, where the inhabitants of Crescent Island are at least smiling, except for the numb faces of the slaves and the cursing of the overseers.

For more than half a month, under Donner's secret observation, he gradually learned some things about Crescent Island. The entire Crescent Island, about two hundred people.

In addition to the pirate group that engaged in unfunded trading, there were about 50 elderly people and women living on the island, and more than 30 children under the age of fifteen.

These old and young are basically the families of the pirate group pirates, but some people have died recently, so there are a few more orphans and widows on the island, and of course, these widows, if the pirates have closed their eyes, maybe they will form a new family.

Some pirates died, but Donner couldn't see a bit of sadness on the island. This led Donner to speculate that the women might have been forcibly looted from the mainland by pirates.

Life on Crescent Island was quite difficult, and all supplies were looted by the pirate regiment, and then the regimental commander arranged for a unified distribution. Bread steamed buns are the staple food, but in addition to this, there are some small animals and sea fish caught in the mountains.

Uniformly dressed linen is made, and there is no need to think about comfort, and you can only barely keep out the cold. Fortunately, Donner is used to such a harsh environment, and it is not unbearable to eat the same food every day in these clothes.

But for him, it was time to change the situation. Because he couldn't imagine that he would live like this for decades.

Downer doesn't know how much literacy there is in the whole world, but in the whole of Crescent Island, there are only two and a half literates.

Half of them were the blacksmith next door to Donner, who was Anna's father.

Donner had become acquainted with the neighbor's father and daughter ever since. Under Donner's side-by-side, I also learned that the two father and daughter had followed the pirate leader Willy at the beginning, and it has been eight years since then, and they can be regarded as the veterans of the pirate group.

The other is the housekeeper on the island, who is in charge of the statistical distribution of materials on Crescent Island, and occasionally goes out with the pirate ship to sell the looted goods, and then buys back the materials needed on the island.

Because it's hard to ask in detail, Donner doesn't know why such a person would follow the pirate group.

The last one is the alchemist of the island.

Yes, the alchemist! the alchemist that countless fantasy novels will describe.

This alchemist was not only literate, but also very knowledgeable. From the mouths of others, Donner learned that alchemists had a fairly high status on the mainland, and belonged to the guests of merchants and nobles.

And now such a serious intellectual, from another world, has actually fallen into the hands of pirates.

Of course, this is not what Donner needs to care about, what he cares about is how to marry this alchemist at the moment, because this is the only window he has into the world.

The alchemist was free on the island, but spent his days in the house fiddling with his bottles and jars, and in recent days, Donner has been running to the alchemist's house a lot.

Donner walked halfway up the hill along the path, came to a cave, knocked on the door, and pushed it open without waiting for a response from inside, at this time the alchemist estimated that he was tinkering with some experiment.

The cave is very dry, the area is not large, it is only about 50 square meters, there are traces of being dug by hand, the whole cave is smooth and smooth, and there are some stone tables and stone benches in it.

It seems that the intellectuals of this other world are treated well everywhere, and the pirates brought him here and built him such a good residence.

At this time, the alchemist was concentrating on shaking the transparent bottle in his hand, deaf to Donner's uninvited, and used to it. From time to time, he threw some ore into it, and then used a quill pen to make notes on the leather rolls.

After so many days of contact, Donner also knows something about the strange personality of the alchemist, as long as he doesn't disturb the experiments he is doing, he can do anything.

Donner didn't say anything, but walked straight forward and picked up a clear bottle that was placed on the stone table next to him. The clear bottle containing an unknown liquid was clearly not glass, and Donner estimated it to be a bottle made of crystal.

If it is according to the material level of this world, it is really not an ordinary luxury to make a bottle of crystal for experiments, you must know that these things are an extremely rare luxury decoration among the aristocracy.

Donner estimates that alchemists are really not bad money masters in this world.

Donner pinched the bottle, shook it, and leaned over to his nose to sniff it.

"Hey, stinky boy, you want to die, if it drops into your eyes, you're blind. At this time, the alchemist Yuri crossed his beard and began to speak.

Huh, is this ......?

Donner paid no attention to Yuri's warning, but the pungent smell of the crystal bottle was familiar to Donner.

"Is this sulfuric acid?" Downer exclaimed, the smell was almost the same as sulfuric acid, although in terms of color, it was not pure enough!

"Sulfuric acid, what's that?"

Yuri continued his experiment, and casually replied to Donner's surprise.

Donner was stunned for a moment before he realized that sulfuric acid is called this on the earth, but in this world the devil knows what it is called.

"Does this thing corrode the skin, and dripping on the wood will burn the wood black?" Donner asked after a moment's thought, the two most common chemical reactions of sulfuric acid.

"How do you know?" Yuri gave Donner a strange look.

Sure enough, it's sulfuric acid, this ...... It's amazing, Donner exclaimed in his heart, he didn't expect an alchemist from another world to actually toss out sulfuric acid, this thing and other two acids and two bases are known as the most basic raw materials of chemical industry, with these things can make a lot of chemical products.

"Do you know what this thing is for?" Yuri, seeing Donner's look of surprise, continued to throw an ore into the bottle.

What's the use? There are so many uses, Donner was about to explain, but it suddenly occurred to him that the alchemist didn't understand the knowledge terms in his brain!

Donner pondered for a moment and asked rhetorically, "You don't know?"

Yuri shook his head, and Donna smiled mysteriously when he saw it, "I'll tell you later." ”

As he spoke, Donner saw a white mist rise from the crystal bottle in Yuri's hand, and the transparent liquid inside slowly froze.

Yuri picked up the quill pen next to him and continued to record on the animal skin scroll, and the stunned Donner suddenly grabbed the alchemist's arm and asked excitedly, "The liquid in your bottle is water, and that stone is saltpeter?"

"It's water!" Yuri nodded, giving Donald a strange look, "As for this stone, it seems to be called the Frost Stone, which I learned from an alchemy notebook." ”

Damn! Looking at the ore, Donner's heart stirred.

Saltpeter, sulfur, charcoal?

This is not the most critical, the most important thing is this world, which is very likely to be an Earth-like planet.

Because these experiments manipulated by the alchemist embodied physical and chemical reactions and characteristics, they were exactly the same as their own earth.

The shrine recorded in the alchemist's collection and the goddess of light in people's mouths are considered a belief for the time being, and can be ignored.

But what about magic? Yuri had confirmed that magic existed in this world.