Walking into the Ogre Valley again, I felt that the inside was almost cleaned.

Uther cleverly found Kael'thas and used his blood mage's flame power to burn the entire valley contaminated by ogres, and now the valley is much cleaner and brighter, except for many places that appear charred and black.

The valley itself was only about the size of two Night Manors, a little smaller, but barely enough for a knight's leader.

After cleaning it up, Donald was now an excellent place to retreat, and even he couldn't help but want to build a mountain villa here.

However, since it has been decided to give it to Uther, it is not easy to regret it, not to mention that although the environment here is good, after all, it is also necessary to open mines, so it is not suitable for leisure play.

"Master!"

Because Donald ordered secrecy, Uther brought summoned soldiers, and after seeing Donald, these people gave a collective salute.

"Go on, Kael'thas and follow me to the cave!"

After a day's rest, Donald had recovered about eighty percent of his strength, and a silver powerhouse might not be able to stab him within a few moves. However, he is still used to bringing Kael'thas with him, after all, his own safety is important, and he can't be too careful.

In the ogre wizard's cave, Donald summoned two diminutive, green-skinned, pointy-eared, long-mouthed goblins.

These two goblin cauldron goblins are even thinner and smaller, carrying some boxes and parcels on their backs, but they are the goblin sapper demolition team of a neutral race among the Warcraft.

"Calculate the best blasting point, plant explosives, and mine the minerals here!"

After Donald finished speaking, he saw the two goblins reply sharply, then opened the box package he was carrying, and began to measure the environment and horns of the cave with his tools.

After a while, a goblin sapper came to report.

"Master, the blast point has been found, do you want to proceed to the next step!"

Donald nodded and said, "Go ahead, let's get out!"

The latter sentence is addressed to Kael'thas. The two of them left the cave, and after walking more than ten meters away, the two goblin sappers walked out backwards, with a gunpowder lead in their hands.

"Master, the preparations are complete, please instruct!"

"Ignition!" Donald spat out two words.

Then one of the goblin sappers struck the flint in his hand, and with a bang, the smell of gunpowder came out, and the lead was already burning like a fairy rod, and soon the fire spread into the cave.

Just listen to a loud "boom", accompanied by the sound of rocks breaking and smashing.

Everyone in the valley felt a slight tremor of the earth, but Donald, who was nearby, felt it most clearly.

At the moment of the explosion, a large cloud of smoke and dust came out of the ogre wizard's cave, and when the smoke cleared, two goblin sappers went to investigate first.

Donald also followed, and now the original cave had collapsed in half, but fortunately, the nearby mountains were relatively strong, and the power of the explosion did not cause any catastrophic effects.

This explosion blew up at least ten tons or so of various ores, and Donald received them all into the storage space, and then ordered the goblin sappers to plant the explosives again.

Blue gold is not hard, but because it is half-born between black iron and hematite, it is more laborious to mine, so Donald specially spent two second-level magic cores to summon two goblin sappers.

The goblin sappers in World of Warcraft are the best demolition squads, and they are undoubtedly the most suitable for rapid mining, and when the first batch of minerals is mined, there will be time to mine them slowly, and there is no need to use such strong means.

In this way, a total of thirty tons of raw ore were obtained, although it seems that there is a lot of it, but among these ores, three or five tons of black iron and hematite can be extracted, which is already a high yield, and as for the blue-veined magic gold, Donald estimates that Dingtian can harvest one kilogram.

Blue gold is the associated mineral produced by the intersection of black iron and hematite, although rare, but because black iron and hematite are the two most common metal minerals in the world, the reserves are very rich, so often a country can also find two or three such two kinds of mining area intersection, as for the blue gold magic mine will not appear, it depends on luck.

As for Mithril and Adamantite, two magical metals that are also extremely rare, they are silver ore and copper concentrate ore that are associated minerals that have mutated for some unknown reason, and the amount is even rarer in comparison.

Once the blue gold is mined, the plan to mint your own magic coins will be able to be implemented.

Dalaran Magic Coins, the name makes people feel "excited" when they hear it, and maybe many years later, it will become a famous symbol of the Bannai magic coinxìng magic item.

With the ore with him, Donald was sent back to the territory alone. Although his teleportation technique has been improved and he can teleport at will within a kilometer, he is still one spirit level away from being able to reach the group teleportation technique, so he can't carry it with others.

When Donald's figure appeared in the Lord's Mansion, William, who was in the office, was not the slightest surprised, seeing more of the way the Lord Lord suddenly appeared, it was not strange for William and the others to get close to his subordinates.

"How many blacksmiths are there in the realm now?"

Hearing the lord's inquiry, William replied non-stop: "Lord Lord, there are now four blacksmiths in the territory, two of them have not been blacksmiths for a few years, and they can only make some farm tools and simple weapons, so they were arranged to Wind Chime Village and Gray Wood Village, although the other two cannot be compared with the well-known blacksmiths in Boulder City, but each of them has their own skills, and can already make some sophisticated weapons, according to the meaning of the adults, these two are assigned to work in the blacksmith workshop in the town, and by the way, take a few apprentices." ”

After hearing this, Donald remembered that two months ago, he handed over several orc weapons collected on the battlefield to William, and asked the blacksmith in his territory to return to the furnace and smelt the metal. The land of the Northwest Wasteland is poor, but the metal deposits are very rich, some materials are rare metals in human countries, and the orcs have low smelting technology and cannot forge excellent weapons, but although the human blacksmith is not as good as the dwarf who is the best at forging in the legend, he has a flexible mind, knows a lot of whimsical methods, and is ingenious in refining materials and mold making, and in some respects even the dwarves have to admire.

"Very well, now you send someone to take me to the workshop to meet these two blacksmiths, I have a new task for them!"

William soon sent a shì from the Lord's Mansion to lead Donald to the town's blacksmith workshop, and the two blacksmiths grew up together like brothers, so they also started workshops next to each other to facilitate mutual exchange and research. Therefore, compared to the other blacksmiths, who cherish their secret recipe skills, the two of them have made rapid progress, and they are only about thirty years old, and their skills have surpassed most of the older generation of blacksmiths.

The blacksmith's workshop was hot, and there was the sound of tinkling and the shouts of the apprentices.

When Donald met the two blacksmiths, they were carefully refining a rare metal, refined copper, in a furnace of molten iron.

Seeing that the two blacksmiths were engrossed and cautiously operating, Donald hurriedly raised his hand to signal the apprentices present to remain silent.

One of the two blacksmiths added firewood to control the temperature of the flame, and the other held a copper rod with iron tongs, slowly stirring in the molten iron, and with each turn, a layer of golden molten metal would hang on one end of the copper rod.

After the two blacksmiths had collected all the molten liquid into a nearby cauldron, they breathed a sigh of relief, stopped the fire, and wiped the hot sweat from their heads.

When he turned around, he saw Donald standing in the workshop, and the two blacksmiths were busy bowing and saluting.

"Your Lord!"

Donald waved his hand.

"No need to be polite, are you refining metal?"

The two blacksmiths looked at each other, and Donald remembered that the one who seemed to be called Wigan said, "Lord Hui, we are refining the refined copper mixed with other metals!"

Refined copper is a rare metal, and the reason why Donald knows more about refined copper is because Adamantite, a precious magical metal, is produced by the mutation of refined copper veins, just like graphite and diamond, the shape has changed, and it has become two completely different substances.

Generally, refined copper is very hard, but the texture is much more brittle, and it is not suitable for building weapons alone, but if you add a little to the weapon made of black iron, then it will have the toughness of black iron at the same time, it will also greatly improve the sharpness and solidity of the weapon.

"Oh, so the copper rod attracts the fine copper, so you melt the metal and use this method to extract the fine copper!"

Donald still understood some scientific principles in his previous life, and after watching it for a while, he also roughly understood the refining methods of the two blacksmiths.

The two blacksmiths were amazed when they heard this.

He exclaimed: "Lord Lord is really knowledgeable, he even knows the secret recipe of our blacksmith, and he is worthy of being a mage!"

Except for the mage profession and blacksmith who are proficient in alchemy, basically no one in this world will understand the principles of chemistry, and of course they will not understand the mysteries of methods such as metal replacement, which is not worth mentioning to put it bluntly, but it is very magical for most ordinary people who cannot understand it.

Donald was also not modest, and asked them about the course of their work again.

At this time, another blacksmith, Val, said: "Orcs are stupid, when they build weapons, they mix a lot of ore and metal, and when they are finished, they are cumbersome and hard, which brings us a lot of trouble for re-smelting, and now most of the ordinary metals are refined and separated, and there are a few that cannot be melted because the flame temperature is not enough." ”

After that, he took Donald to inspect the materials that had been separated a few days ago stacked in the back of the workshop.

Donald saw the pieces of metal locks with different faces, although most of them were hematite, black iron, and copper, which were three common metals, but there were also a small number of rare metals that could be used for forging weapons and equipment or refining spell items, and refined copper was among them, and he couldn't identify the others one by one