After finishing the modification of Reiko, Jin started to work on his next project the next day.
"Now, what kind of material do you have for the Frost Dragon?
Yes, the Frost Dragon, which he had obtained, albeit by accident.
"Oh, I see."
"Oh, I'm looking forward to it."
"Hmm, interesting."
Jin, Erza, and Saki head to the temporary material storage area set up behind the laboratory.
There, covered by a tent, Reiko was already waiting for them.
"Father, these are the materials and the stuffed Frost Dragon," she said.
"Whoa!
There stood a stuffed frost dragon about 20 meters long.
"Its skin is weaker than those of ancient dragons and sea dragons, so they stuffed it.
Reiko explains on behalf of the old man.
Bones and tusks are strong and can be used as materials. It is more like ivory.
The pieces were neatly sorted and piled up.
Jin once showed me an ivory seal that belonged to the director of the orphanage where he worked. It had a noble texture.
"It is unlikely that the meat is edible, perhaps because they are fed mainly on free magical element (ether). However, I have not yet finished analyzing it, so I have stored it in the ether stocker.
In the ether stocker, magical materials can be stored semi-permanently. We can analyze them slowly.
"I have also stored the internal organs in the ether stocker, would you like to analyze them?"
"......Hmmm, I don't know what to do. ......"
Jin is not a biologist and has never done any autopsies. He had never even done so in science class.
"It would be a waste to just throw it away. ....... Let's put it on hold for now."
Thus, the materials were categorized into usable materials, unusable materials, and materials on hold, and some were stocked while others were offered for research.
Saki was interested in fangs.
"You can bite off the shell of an ancient dragon, which is said to be the strongest biological material, you know.
But Jin refutes this.
"No," Saki said, "even I could tear it off. ......It's a shell with no magic power, so it can be easily crushed."
"Kuhu, that's right. "That would mean it's a shell as well, so it can be digested.
"I suppose so."
At this point Erza spoke up.
"...... what do frost dragons eat the shells of ancient dragons for?"
"Hmmm, I wonder why?"
There are many things we don't know about the ecology of ancient dragons and frost dragons.
"700672 know something about ......, right?"
"Jin, did you find anything out?"
"No, no, I just realized that I never thanked 700672 for finding the shell.
"Oh, I see. That wouldn't be right, would it?"
"Well, you should go."
"Right, ......, okay!"
Reiko's modifications were finished, and Jin said, "I'm going to go now.
"Have a good day, Brother Jin."
I'll be studying!"
I'll be studying!
"Well, you've done a wonderful job. Superimpose, superimpose, superimpose...
Jin visited No. 700672 with Reiko and gave a brief account of his exploration and detailed instructions on how to use it.
"Well, it's brilliant. Excellent work.
The 700672 praised Reiko when she saw her.
"By circulating magic power, it becomes indestructible skin. In addition, you used it for the muscles and the skeleton? That's a good idea. I never would have thought of that."
Embarrassed, Jin changed the subject.
"I found the carcass of a frozen dragon by accident and brought it home. I'm studying it now.
"Well, that's lucky. The demons living in the north, especially the dragon species, can live on free magical element (ether) alone, which is exceptional for powerful demons.
The lowly can live only on free ether. The higher ones feed on lower demons, animals, and plants. This was the general ecology of demons.
However, it is true that frost dragons eat the shells of ancient dragons. They may be tasty, but I don't know that either.
No. 700672 smiled.
"To go back to the topic, that is why leather becomes tough when it is enchanted, and the same can be said for muscles. However, it is of little use because of its poor preservation properties."
"I see. ......"
It seems that the flesh of frozen dragons is useless after all. Breaking it down into atoms and disposing of it may be the best way to recycle it.
"But the cold magic used by the Frost Dragon, I think there is a core of magic that controls it at its throat. We should secure it."
"The core of magic ...... is like a crystalline body of free magic element (ether), isn't it?"
"Yes, you could say that. In short, it is a magical crystal of biological origin.
Gallstones and kidney stones are crystals formed in the human body. They are harmful, but the magic core is useful in a different way, Jin thought.
The discussion then turned to the discussion of materials. At that time, No. 700672 gave him an unexpected gift.
"If you want to check the physical properties of the material, I can give you this reagent.
He said, and had Neige carry a small container. It was about the size of a wardrobe.
It contains acids and alkalis. It's a dangerous substance, so please handle it with care.
"Thank you."
Chemistry is not Jin's strong point. To be honest, he was very grateful to receive these reagents.
After exchanging some other technical words, Jin decided to return to Horai Island.
"Well then, thank you very much for everything.
"Well, I'm glad you feel free to drop by.
"Mr. Reiko, please come back again.
"Please come back again, Ms. Neige, and take good care of your father.
* * * *
When Jin returned to Horai Island, he found Saki jumping up and down with excitement.
"Saki, what's wrong?"
"Oh, Jin! Look at this Magi Crystal! It came out from inside the Frost Dragon!
Saki pointed to a basketball-sized Magi Crystal. It has a light aquamarine hue, different from aquamarine.
"Ah, this is the magical core of the Frost Dragon, isn't it?
What?
Brother Jin, you know about this?
Jin then shared the knowledge he had just received from the 700672.
"Hmmm......... this is the main source of that unbelievably cold air. That makes sense."
"So, I heard that the meat is useless, so let's get rid of it before it spoils."
"Hmm, that's a good idea."
Thus, it was decided that the Frost Dragon material would be handled.
"Then, I got this reagent.
Jin pointed at the container.
"You are in charge of it. Saki can use them, but be careful, okay? There are some very dangerous drugs in it.
He asked the old man to check first and to add labels if he knew of any.
* * * * * * * * * * * *
After lunch, Jin was relaxing with a cup of tea when the old man spoke to him. Both Elsa and Saki have gone to the workshop.
"Hmm? Let me ask you something."
>
"Hmm?"
"Yes, so?"
"...... I don't think so, but what's the gas?"
Jin looked at me with a scowl.
There was once a very large airship on Earth called the Hindenburg. It was a large airship, over 200 meters long.
It crashed in a sudden explosion. Along with the sinking of the luxury liner Titanic and the explosion of the space shuttle Challenger, it is one of the most serious accidents of the 20th century.
Although NASA now says that the explosion was not caused by hydrogen gas but by sparks ignited by static electricity on the iron oxide/aluminum mixed paint (same composition as thermite) on the surface of the hull, the explosion was not caused by flammable gas.
However, it is still a flammable gas, and its air sacs are made of hemp and soft magic resin, which are also flammable. It is not nonflammable or heat-resistant like the ground spider resin (GSP).
"......While it's nice that you've made an airship to look like an airship, ......"
When he thinks about the case of an accident, he is worried that he might be partly responsible for it.
"Well, you know. It does not seem to use hazardous materials such as iron oxide/aluminum mixed paint.
At any rate, let's just develop a fire extinguishing tool," thinks Jin.
"Well, I'm sure it would be useful in any country."
What is it? What is it?
<
"What?"
>
"What? ......"
If the old man's theory is correct, then there is an unexpected drawback in using the ancient dragon leather.