Chapter 248: 251

Chapter 251 - New Magic Sword

"Ah, Ars-dono, I shall start telling you the fruits of my research on the flame ores, degozaru."

"Your research? You originally said it was one of the materials for the Nine-Tailed Sword, but was too soft to be used as a weapon. What did you find out?"

"There is a possibility that it is a new discovery about the ores' hardness, degozaru. I observed both the ores in the existing Nine-tailed Sword you have and the ores that we mined. Between the two, I noticed a difference in the number of impurities each side had."

"Impurities? Were there a lot of impurities in the flame ores that we took from Fox Valley?"

"Yes. Maybe it is a difference due to how the ores used for the Nine-tailed Swords originated from the bodies of the Nine-Tails, while the flame ores we have were taken from the walls. Anyhow, with those impurities, the ores cannot be used to create durable weapons."

"I see. That could be the case. Then that means it will be important to remove those impurities, right? Have you done that, Gran?"

"Not yet. I think that an extreme temperature difference is necessary to remove the impurities, degozaru. That is what you and I are going to do, Ars-dono."

"Extreme temperature difference? You mean to cool down the flame ores?"

"That is correct, that it is, Ars-dono. The Blast Furnace I built heats the flame ores at a very high temperature, then you cool the ore down. Using the power of the Ice Spirits!"

"Hmm... so, for a long-lasting effect, would you like me to create ice water or something?"

"That would be very much appreciated~ The flame ore heated at an ultra-high temperature would probably vaporize ordinary water in an instant, degozaru. However, again, I would wish that you used the power of the Ice Spirit to keep the ore cool."

"I think you're the only one who would think of using the Head-class spell of a noble family for such a thing, Gran. But, well, I understand what you mean. Let's get on with it."

"Alright. I would like you to keep this water chilled here. Leave an Ice Spirit in the water. Meanwhile, I will heat the furnace."

　With that, Gran opens a small door attached to the Blast Furnace and throws in the magic stone.

　Apparently, the magic stone is linked from there to the flame ore inside, which supplies mana to the flame ore used to power the furnace.

　Air would normally have to be pumped into the interior of the furnace to get the fire going.

　I remembered the first time I built a furnace with Gran before and had Kyle help me step on the bellows...

　However, it seems that the one Gran built this time does not need such tiresome bellows.

　Perhaps it is due to the characteristics of the flame ore, which react to mana to produce a high-heat flame.

　I have been in front of a furnace with a conventional fire, but the ambient temperature in the Blast Furnace was clearly higher than that.

　It makes me wonder what temperature the inside must be.

　The flame ore is heated to an ultra-high temperature.

　While sweating as I watched, I saw something slick melting out of the flame ore.

　I looked at Gran's face with a sideways glance and saw that he was also staring at the flame ore.

　Those must be the impurities contained in the mined flame ore, I suppose.

　After some time had passed, Gran took the ore out.

　He placed it on an anvil and began to hammer it with his favorite mallet to stretch the material.

　A high-pitched clang echoed through the air.

　After a certain amount of hammering, the ore was returned to the furnace, heated again, and struck once more.

　This process was repeated several times.

　Gran's movements were very polished.

　It looked like he was just hammering, but he was probably working to even out the shape of the piece.

　He even seemed to shape it into a sword as it was.

　After shaping the object into a standard sword shape, the hardening process began.

　A container of water was set up next to Gran.

　I had been cooling it all along using a shiny, blue, round-ball Ice Spirit which I had summoned with the [Ice Spirit Summoning] spell.

Gran put the now sword-shaped flame ore into the bucket.

　In an instant, a large amount of steam rose.

　Honestly, that was a bit scary.

　My mind thought that the metal was too hot for the water, and a volcano-like eruption would occur due to how much of a difference there must be between the two substances.

　But that didn't seem to happen.

　The Ice Spirit.

　The Ice Spirit that was cooling the water suppressed its temperature, which should have soared.

　The steam only appeared for a single moment.

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　After that disappeared into the air, there was the flame ore being cooled by the cold water in its wake.

　Something strange happened to the flame ore.

　The sword-shaped ore, which had been dipped in water, had changed color.

　The ore, which at first was bright red like magma because it had been heated at a very high temperature, turned blue in the cold water cooled by the ice spirit.

　Still, even after turning blue, it suddenly turned red again, then once more blue.

In this way, the change in color slowly settled down as it went back and forth between red and blue.

"Hey, Gran. Did you expect this?"

"No, this is something I expected, degozaru. I am surprised, that I am. Very much so."

　The color change stopped completely in a while.

　Then Gran pulled the sword out of the water.

　In his hands was a pale purple sword with a bewitching glow that had been formed.

"Ars-dono, will you try it? This new sword needs to be wielded by you first."

"I'm just a bit afraid due to not knowing what is happening, but it seems safe and looks interesting. I'll do it."

　With that, I received the sword in Gran's hands.

　The metal should have been heated to a super-high temperature in the furnace a few minutes ago, but now it feels chilly and peculiar.

　It is shaped like the common Western swords that Gran has been making, and it is easy to handle.

　The hilt which was prepared was fitted onto the new sword.

　With it in my hand, I moved to the log which I had placed beforehand to test its cutting ability.

　I swung the sword at the log.

　The sword was not as sharp as Grand Barca, but that doesn't matter too much.

　However, the initial problem of the softness of the flame ore had been solved.

　After cutting the log, there was not a scratch or distortion on the blade of the sword, looking like it could cut the log over and over again.

　I think this is enough to use the flame ore as a weapon.

　However, that was not the only problem.

　The most important thing about this sword is what happens when mana passes through it.

　If one thinks about it normally, since the sword is made of flame ore, it should create a flaming sword like the Nine-tailed Swords.

　However, I had a feeling that this would not be the case after seeing the scene when the sword was cooling.

　I had no idea what was going to happen.

　Fearfully, I passed mana through the new sword.

"What is this? Ice? It became an Ice Spirit Sword...?"

　Yet, to my surprise, ice appeared from the body of the sword after I passed my mana through.

　The Ice Spirit Sword of the Fontana family.

　A magical sword that extends a blade of ice using mana.

　Likewise, a sword of ice extended from that new sword.

　However, it was completely different from the Ice Spirit Sword.

"Ehhhh? Gran, when I cut this log using the mana-filled sword in this state, didn't it just freeze it and then burn up the log?"

"...... Apparently, when you slash with that ice sword, it freezes once and then burns, Ars-dono. This sword seems to be a completely new magic sword that has the features of the Ice Spirit Sword and the features of the Nine-tailed Sword, degozaru"

"A magic sword that combines the properties of ice and fire. I guess you could call it an ice and flame sword."

"I like it. How about we call the sword 'Grand Ars,' since it was created by the two of us, Ars-dono and myself?"

"I'm embarrassed that my name is being used. Well, if you say it's a good idea, then let's do it."

　The surface of the test log froze once it was sliced by the new magic sword.

　Ice had covered the entire log.

　The next moment, the ice turned into flames.

　I have no idea of the logic behind this, but I suspect that the ice itself was converted into flames.

　Thus, I obtained a new magic sword, the Ice and Flame Sword Grand Ars.

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