(Two more completed, all kinds of requests)

A sudden rain swept through Winterdusk Castle.

It began to rain in the second half of the night until the afternoon of the next day, and the hearts of the people were as heavy as clouds in the sky.

In such slippery weather, the original itinerary for today could not be continued, and Gehr could only pass the time by doing some experiments indoors, while Sophia made a temporary cameo appearance as his assistant, and by the way, he could also have a deeper understanding of alchemy.

"Sophia, how's the situation with bottle 3?"

"The temperature started to drop, the color changed from dark blue to light blue, and the trend of lightening continued. On the test bench, Sophia stared at the reagent bottle hanging from the flame, holding a notebook and pen and carefully recording the data.

"When the temperature drops to 36, the blue color will all disappear and the liquid will turn into a thick white liquid, and then the reagent from the No. 1 and No. 2 bottles will be poured in turn and let it cool for 30 minutes. ”

"Yes. ”

This time, Gehr is making a basic reagent - Yarop Mineral Identification Agent. Invented by the university scholar Yarop Frantek, this reagent can determine the type and content of various substances of minerals by chromatography produced by the reaction between the reagent and the mineral, and the preparation process is easy because the materials required are common and cheap (in fact, Yarop mineral identification agent is one of the most basic reagents in alchemy, and almost every student has practiced making this reagent). The identification accuracy is extremely high, so Yarop mineral identification agent is very popular with major mining industries as soon as it appears, and is known as the milk that gives birth to modern mining.

As the Colbenson family with several mines in the territory, there are sufficient reserves of various materials for this reagent, and the experimental tool of reagent bottles is not a valuable commodity in this era when glass is no longer unusual, and small workshops in the countryside can produce it, but the quality is high.

Because the production of this Yarop mineral identification agent is almost dangerous, and the process is simple, it is most suitable for introductory experiments in alchemy, so Gehr simply left it all to Sophia to make, and he was just pointing at it.

I have to say that Sophia is still very talented in alchemy, and after a few times of chaos in the early days, the subsequent experiments were carried out in a good way, and Gehr also left the rest of the matter to her, and began to collect various mineral samples in the past two days to sort out them, so that they could start testing directly after the reagents were manufactured.

"Brother, the reagents are ready. ”

"Well, you divide the reagent into five beakers, weigh the ore powder on one side and put it in, wait five minutes to start recording the data against the map. ”

"It's good. ”

Gehr closed the book in his hand and watched Sophia run around the laboratory like a cheerful bird, and couldn't help but smile a little, it seems that she really likes alchemy, and she really hopes to develop in this area in the future. In other words, the last time I was attacked by a ghost fire monkey on the Alawo Bridge, I ended up carrying the "Fundamentals of Alchemy" that could have been used as a brick and fell into the deep valley with the carriage, which made Sophia unhappy for several days, but unfortunately I didn't have to buy this kind of book in the north, so I could only wait to go back to the central province to buy it or ask someone to help send a copy over.

Thinking of this, Gehr glared at Alex, who was one of the culprits, and the frightened little monkey who was staring curiously at the master's busy body shrank and quickly buried his head in the pile of clothes.

"Sample No. 1, the color reaction is stable, judged to be iron ore, with an iron content of 26%, and the mining value is very low. ”

"Sample No. 2, the color reaction is stable, and it is judged to be tin ore with a tin content of 0.2%, which has a certain value for mining. ”

"Sample No. 3, the color reaction is stable, and it is judged to be copper...... , brother, can you come and see if this is copper ore?"

Gehr walked up to Sophia and looked at the beaker she was pointing to, the slightly orange color was indeed very similar to the color of copper ore on the map, but on closer inspection, it felt a little different. Gehr rummaged through the atlas for a while, and finally found a very similar color in the precious metal judgment column - gold.

Sticking his finger directly into the beaker, Gehr turned on the analysis function.

"The model of the matter is established, and the analysis begins...... Assays have resulted in the material being gold at 0.021% bonanza. ”

"Found it, that's what they're for. ”

Geer's eyes froze, and he asked in a low voice, "Sophia, where did this ore specimen come from?"

"After going to the Baron's cemetery two days ago, brother, you brought it with you when you came back, by the way, you also brought a malachite. ”

Listening to Sophia's words, Gehr immediately thought of the little boy who had been caught at that time, and after releasing him, in addition to the malachite, he also found a few ores in the place where he was hiding, and he didn't pay much attention to it, so he brought it back as a specimen.

"Sophia, you practice alone for a while, and remake the Yarop Mineral Identification Agent again. ”

"It's good. ”

Gell left Sophia in the lab, and he walked quickly to the library on the other side, where he found the ores in the specimen compartment. After getting some ore dust from several ore specimens and analyzing them one by one, Gehr got the results he wanted.

"It's all gold, with grades between 0.02% and 0.03%, so it's no wonder they're in such a hurry. ”

After all, if it is all such ore, a ton of ore can produce more than 200 grams of gold, which is already a rare large gold mine in the world, and the largest and richest gold mine in Konatas is more than 150 grams per ton, and it is close to exhaustion.

If the vein is the biggest, this is the wealth that even the richest person will go crazy for.

Gehr began to think about how much leverage this discovery would give him.

But all this must be after withstanding the opponent's counterattack.

......

The tower has four floors.

The corridors were quiet, with a heavy atmosphere peculiar to silence.

Clover and Leeu sat opposite each other in full gear, and the oil lamps in the corridor were swayed by the wind from time to time, and even the shadows of the two knights kept trembling.

The two knights were in charge of the vigil in the first half of the night, which had been done since yesterday, and the passage they were in was the only way to the fifth floor, as long as they blocked it, they could block all attacks on the fifth floor.

Click!

The sound that was originally slight was extremely harsh in such an environment.

Clover and Leeu glanced at each other, and both noticed the look of surprise in each other's eyes, for the voice was not coming from the direction they were guarding, but from behind them, but the servants had long since been driven below the third floor, and Gell had said that he would never go out these nights.

Standing up, the two knights looked at each other again, with Lee taking the lead in the direction of the sound, while Clover subtly kicked the wall, making enough sounds to alert the other three knights, and followed Leeu to cover for him.

Coming around the corner, Leeu made a gesture for Clover to stop, shielded his upper body, and carefully stepped out of the cover of the corner of the wall.

Sou!

In the next moment, Leeu bounced back like a spring, and then several black shadows flew by, hitting the wall behind him and bouncing down.

It's a crossbow bolt!

"Enemy attack!"

At the knight's roar, they saw the light of the aisle reflect the other side from the mirror-smooth shields—a row of heavily armored warriors blocking the passage, and the cold gaze flowing from the crack in the helmet locked the corner.

......

Inside the bedroom.

Gehr sat at his desk as usual, but instead of reading or writing or drawing as before, he was holding a badge and playing with it.

It was a small oval, with a roaring bear head in the center, surrounded by flame-like lines, which was the family crest of the Colbenson family, which was the most glorious place of the Colbenson family, and the Wolfgang in the middle of the name and this coat of arms were given by the king by virtue of the great military exploits of their ancestors.

"Why do you always feel that something is wrong? With Isolde and them guarding, it is almost impossible for my uncles and aunts to come up, so why do you still feel uneasy?"

Gehr kept flipping the badge, but the inexplicable sense of unease that surrounded him was that he had to wonder if he had overlooked something crucial.

"Squeak squeak!" Alex suddenly cried, followed by the knight's roar from outside, a vague but enough to tell the two words in the bedroom.

Gerhoran stood up, the straight knife on the side of the desk was already in his hand, and he drank clearly: "Sophia!"

The girl on the bed also got up alertly, picked up Alex, lifted the large wooden shield leaning between the bed and the wall, and got in, covering her body tightly.

Bang!

The thick wooden door of the bedroom was kicked open.

Gell turned his face to look over, and his eyes couldn't help but have a hint of murderous intent: "It turned out to be you!?"

"It's me, Master Griezmann. Kevin, the old butler, stood in the doorway with a smile, and behind him several fierce warriors in simple half-body leather armor swarmed in.

The soft sound of the sword unsheathed continued to sound, and the bedroom was filled with slaughter.

......

A few minutes ago.

In an inconspicuous corner of the fifth floor of the core tower, a stone wall quietly moved away.

Kevin and Carlos stepped out first, followed by a stream of warriors, walking towards both sides of the passage according to their pre-assigned instructions.

"When construction began, the tower was only four stories high. At that time, Winterdusk Castle was surrounded by the combined legions of several barbarian tribes, and it was in danger. But the last one survived, and he counterattacked and built the fifth layer with the stones of these tribal altars, but in view of the fear of being besieged, this secret passage was also built when the fifth layer was rebuilt. But unexpectedly, the barbarians became more and more vulnerable, and when the sixth floor of the tower was built, there was no more power around to threaten Winterdusk Castle, and this secret passage was forgotten. ”

Kevin elegantly recounted the history of this secret passage that would allow them to go straight to the fifth floor, but Carlos was obviously not interested in listening to him describe the story, and said coldly: "You go and solve Gehr, I'm here just in case." ”

"As you wish. ”

Kevin knew that this was a vote, but he didn't care, if he wanted to gain, he had to pay, and he had this awareness from the beginning.

(The part of the conspiracy that I hate the most is finally over, and I can start fighting happily)