The demonic essentia is not the hardest metal, and its special feature lies in its extraordinary stability.
Once cast, its internal structure never changes in any way, and no amount of supernatural power poured into it will disrupt this stability.
However, this advantage can sometimes bring certain problems, and when these demonic essentia creations need to be repaired and transformed, their strong stability will cause headaches for blacksmiths.
Neither a hard cutting tool nor the high-temperature scorching of spell energy could make any changes to it.
However, this problem is difficult for clever goblins, who have solved this problem more than 10,000 years ago.
In fact, many people, including some of the goblins themselves, believe that the solution to this problem is completely due to the huge pressure of survival.
You know, after being given the power of the earth by the Titan Kazgros, the forger of the world, to become a guardian dragon, there are some goblins who have been serving Nesario.
During the War of the Ancients, when Nesario went berserk and fled back to the Earth Elemental Plane, Deep Rock, the Black Dragon ordered the goblins to create a sturdy armor for him to secure his cracked body.
In the face of the brutal Deathwing, the goblin craftsmen who were not successful and would have worked day and night to create the only and unique set of Essentia armor in Azeroth, which firmly anchored the body of Deathwing.
Because essentia armor cannot be formed at one time, it must be modified many times during the forging process, and in this process, a new method of demonizing essentia smelting was gradually explored, and later, the leader of the goblins, the Great Elemental, compiled this method into a book "Goblin's Guide to Essentia Smelting", which has been passed down from generation to generation.
Luckily, in Diego's previous life, he had snatched the booklet from Krisik, a goblin archelemental master of that generation, during an attack on the Black Wing's Lair.
Now, as a good friend, he didn't mind sharing this true knowledge with Thrum that none of the Thorium Brotherhood had.
"Ten Elemental Ingots, One Blazing Core, Three Elemental Fluxes......"
Serum counted the materials needed as he searched the warehouse, "I have Elemental Fluxes here, but Aojin Ingot only has a small piece ......"
"I've got the Ogin and the Blazing Core."
Diego interjected.
When he first came to Stormwind and drove out the black dragon Onexia, he rented a vault from the Stormwind Bank and stored all the treasures he had received from the Black Iron Dwarves.
Later, after the castle of the lords of the port of Long Beach was built, he did not move all these treasures there.
You know, he doesn't stay at home much all year round, and the castle's underground treasure vault may not be safer than Stormwind's bank vaults.
"Oh, I forgot, you're super rich!"
The old dwarf, who was rummaging on the ground, patted his head and straightened up.
The raw material problem was solved, and in the afternoon of the same day, the smallest furnace in the workshop was lit by a fire.
Despite being the smallest, this furnace was used by Serum to forge the finest weapons, whether it was the refractory bricks used in the furnace, the coke used, or the crucibles used for smelting.
However, the length of the smelting exceeded Diego's expectations, and even though Serum used the most expensive coke made from Starwood, it still took them three days to raise the furnace temperature to the desired level.
In the past three days, Serum has not left the workshop, even eating and drinking Lazar in it - there is a flush toilet in the corner of the workshop, which is not afraid of dirty air - he observes the color of the fire every day, adjusts the air intake of the magic bellows according to the actual situation, and replenishes the furnace with coke from time to time.
"Alright, it's time!"
When, on the evening of the third day, the color of the fire finally changed from pure white to light blue, and finally to sky blue, Serum suddenly cried out.
At this time, even standing three meters away from the hearth, Diego only felt a burst of burning, his skin felt as if he had been pricked by needles, and his hair was dried and charred, as if he was standing in front of a volcano without protection.
In fact, they weren't unprotected, otherwise they would have been roasted to dry.
They were now wearing two blacksmith's aprons sewn from the skin of the Behemoth, the skin of the large lava dog with the magic of death frost attached to it, which would have frozen them into ice sculptures if they hadn't stood in front of the furnace, but now, the heat of the furnace and the extreme cold formed a wonderful balance to protect them from harm.
"Push the cauldron in!"
Thrum squinted and commanded loudly.
Diego slowly pushed the fixed iron frame with wheels in front of him, and smoothly pushed the crucible suspended outside the furnace mouth into the furnace chamber.
This is a very demanding work of the blacksmith, and if you advance too early, the ash in the furnace may fly into the crucible and contaminate the melt, and if the crucible is too far away from the furnace mouth, the crucible that has not been fully preheated will break due to the temperature difference the moment it enters the furnace.
The cauldron has been passed down through generations of the Deep Furnace family, and is forged from a mixture of black iron and guardian stone, plus a dash of Safron iron, making it almost the most heat-resistant substance Azeroth can make.
When the Thursilver Brotherhood escaped from the Blackstone Abyss, Serum took nothing with him, only this family heirloom.
In his long forging career, this crucible has only been used passively a few times.
At a speed visible to the naked eye, the cauldron melted the ingots, fiery cores, and elemental fluxes into a bright red molten almost magma-like, with tiny bubbles popping up on the surface of the liquid from time to time.
When the gas in the molten liquid had completely evaporated and no more bubbles were coming out, Serum picked up a bottle of wizard's oil from the side, unplugged it and poured it into the hearth.
This alchemical potion contains the sap of the Flame Flower and the Phantom Dust, which can keep the temperature in the furnace stable for a long time, making it an ideal accelerant.
The flame at the mouth of the furnace slammed up more than a meter high, and after a few minutes, it gradually shrank back, unlike before, the fire no longer shook, but erupted vertically upwards like a short sword, making a hissing sound.
Thrum steadily raised the long-handled pliers in his hand, picked up the fragments of the Dragonlord's Blade in the treasure chest beside him, and carefully placed the fragments into the crucible.
With a soft thud, the fragments sank into the melt and disappeared.
"It's broken, how can you tell if the shards have melted now?
I can't see it at all!
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Diego asked, a little nervous.
Whether intentionally or unintentionally, the "Goblin Essentia Smelting Guide" does not mention what the signs will appear when the essentia ingot is melted.
Well, that's in line with the goblins' always unreliable and bizarre style.
"Maybe the melt will change?"
Serum said uncertainly.
He had also never smelted essentia ingots and had no experience.
As soon as he finished speaking, the color of the molten liquid in the crucible seemed to darken.
This change is extremely subtle, and if it weren't for the two people who have been staring intently, they might not have noticed this change.
"Is this a change?"
"Sort of?"
The two of them were talking with some excitement.
As they watched, the color of the melt changed faster and faster, from bright red to bright red, then from crimson to deep red, and finally to purple, and then it settled at this color, never to change again.
"It's time for the fire!"
After years of blacksmithing, Thrum was keenly aware that the fragments of the Dragonlord's Blade had been completely melted.
He took the handle of the crucible and took it out of the hearth.
Diego hurriedly pushed the mold that had been prepared a long time ago.
This mold is cast with black iron, and the inner layer is evenly and finely coated with a layer of stone scale fish oil, which can perfectly isolate the melt from the mold and prevent it from smelting together.
Thrum lifted the crucible above the mold and slowly poured the melt into the mold.
There was less and less molten in the crucible, and by the time the last drop of melt was poured out, the five pits in the mold were all filled.
"Well done!"
Looking at the naturally annealed molten liquid on the side, Diego couldn't help but whisper praise.
He can't wait to see how these hand-cast creations are!