After hearing Avicenna say he wanted to take out the gold coins, Ella first glanced at the middle-aged gold coins in the solution reluctantly, and then slowly walked away.

"What are you going to do?"

"Go and find tweezers to get the gold coins out."

Ella slowly flipped the cabinet, then slowly pulled the drawers one by one, then lay down on the ground to check the gap between the cabinet and the ground.

"Have you found the tweezers?"

"The laboratory is not mine, I'm not very familiar with where the tweezers are."

After checking the cabinet, Ella began to search for the carbon ash in the boiler again. Anyway, the gold coins were not hers, so she was not in a hurry.

But Avicenna was anxious. Seeing that there were more and more bubbles, he rushed up and wanted to grab the gold coins with his hand. Lazi took the opportunity to remind him: "Be careful, this is a strong acid that can dissolve gold. The nature of your hand is not as stable as gold."

Avicenna's hand was about to reach into the liquid when he heard Lazi's words, and hurriedly retracted his hand like an electric shock. He looked at Ella with dissatisfaction and shouted, "Have you found the tweezers yet?"

"Well, I've seen it before, where are you..."

Ella took off her boots and reached into it to grop. Avicenna stomped her feet, pushed away the crowd around the door, took a pair of tweezers from the next room and rushed back. Ella saw Avicenna getting the tweezers, and said "tsk" in disappointment, and put her boots back.

She really wanted the gold coins to dissolve more in the liquid.

When Avicenna washed and wiped the dozens of gold coins, the patterns on the surface of the gold coins had been corroded to an extreme appearance.

John de Rupisissa took a gold coin from Avicenna, looked at it carefully for a while, and exclaimed, "This is such a great skill. How did you do it?"

"It is based on the alchemy text left to me by my teacher, the second of the twelve keys: the precious bath water required by the king must be made the most intelligent and careful by the two fighters, the eagle and the dragon. It is useless to build a nest on the top of the Alps alone, because the eagle will freeze on the mountain. But when you introduce the eagle to the eagle that has lived between rocks and crawled into and out of the cave, and put both in a hell position, Hades, the Pluto, will blow violently, sending out a flying, fiery spirit from the middle age of the cold dragon, whose huge heat will burn the eagle's feathers. Prepare a steam bath, and the snow on the mountain will surely melt into water completely. The mineral bath prepared in this way will bring good luck and health to the king."

"Complex alchemy text." Razi thought, "The 'king' must refer to gold. The 'king' of the king' must be the liquid that appears in front of us. It is made of two substances: eagle and dragon. I guess the 'dragon' refers to saltpeter. Because there is a hint in the text that the 'dragon' crawl out of the middle age of the crypt, the 'cold dragon' will send out the 'flying, fiery spirit'. The saltpeter naturally exists in the cave, and he tastes cold on his tongue. The 'flying, fiery spirit' sent out after heating refers to nitric acid. Jabir Ibn Hayan made it from saltpeter by distillation. I guess right?"

Ella nodded repeatedly: "That's right! It's just saltpeter! And the teacher who gave me the book was Jabir Ibn Hayan!"

Lazi looked surprised: "Oh, Jabir's literature is very precious. He is the most famous alchemist in the classical period. If you want to say who is most likely to have made philosopher stones, it must be him. Not long ago, I found his fragments, which were only three pieces of paper, but it cost me fifty cows. Do you also have his fragments in your hand? You just said that you have twelve keys...? Can you share them with me?"

Amy covered Ella's mouth, who was about to answer. She had already heard some clues from Razzy's words. They were now in another country. If Ella replied that Jabir gave her the book himself, there would be a large thick book, and the book also recorded what Jabir had learned throughout his life, there would probably be many more changes in vain.

"We only have twelve pieces of paper in our hands, which are the twelve keys she just said." Amy replied for Ella, "We didn't bring the things, we only remember a few of them slightly, so we can't show you, sorry."

Laqi's face showed some loss: "Oh, it's okay, there's still a chance next time, there's still a chance... But I don't understand, dragon refers to saltpeter, what does eagle mean?"

Aila pulled Amy's hand away and pointed to the middle finger of her right hand with her left hand. Lazi suddenly realized: "It's the middle finger of the philosopher's hand, second only to the nitrile on the thumb and the sulfur on the index finger. The ancient philosopher told us that this is because the power of the nitrile on the sanitary is second only to the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the sanitary on the

Ella replied proudly: "Yes, it is the burning sand, the sun in the hands of a philosopher. It will sublimate as long as it is slightly heated, just like an eagle with strong flying ability. After it sublimates, it will leave a white substance like snow at the bottom of the flask, so it is said that 'the eagle will freeze on the mountain'. The key is that when it is put together with saltpeter, it will produce an acid that is much stronger than nitric acid, which is enough to dissolve the gold. This is the 'king bath water for the king's when my master Jabir Ibn Hayan discovered."

After a brief surprise, Razi turned to Avicenna and said, "Did you hear this? This powerful water was made by Jabir Ibn Hayan, who you just denied as a liar. It seems that before the Seven Hills Empire banned alchemy, those ancient alchemists had indeed mastered skills far beyond our time."

"It's not over yet." Avicenna suddenly said to Ella, "Come on, try evaporating the gold!"

"Avicenna!" shouted John de Rupisissa, "Gold has been corroded, which means that people have the ability to analyze gold. Even so, do you still have to mess around?"

"It's not me who said she wanted to evaporate gold, but this little girl!" Avicenna shouted, "If she can't do it, it only means that she is just a liar! How can we believe a liar?"

"You said she is a liar?" Amy couldn't help it. "The gold has dissolved. Isn't it enough to just heat it and evaporate the water?"

"Sorry, Amy, that won't work."

Ella poured the bottle of dissolved gold into an airtight container, and heated it for Amy to see. As the solution evaporated, a crystal became apparent. As the temperature continued to rise, the crystal disappeared, and the golden gold appeared at the bottom of the bottle again.

"To make the gold evaporate, you need to use a third key - this is the limit that my current skill can reach."

When he heard that Ella was really ready to evaporate gold, even the little old man John de Rupisissa frowned:

"Little girl, although I am amazed at the skills you have shown, you should be careful of your assertions. Even if this method is mentioned in the fragments you find, you should know that the volatility of gold is often only seen in ancient literature as an elegant and exaggerated rhetoric. And in most cases, it is used to mock alchemists."
Chapter completed!