On the way back to Dalaran, Rex looked at Kael'thas who was in deep thought, and was in a very happy mood, looking at Dalaran in front of him, just now in the back mountain, Rex had reached an agreement with Kael'thas that Rex traded with Kael'thas with the design drawings of the Tower of Mystery, in exchange for 100,000 gold coins in cash, and a large amount of magic materials.

The cost of the construction of a mysterious tower, etc., is 10,000 gold coins, that is Gilnes, for the high elves, there is no need to spend so much at all, most of the magic materials, the high elves themselves have, can leave most of the gold coins, Rex is thinking about this, so later did not need gold coins, but magic materials, really to be fair, the high elves sell things, the price is relatively high.

This time Kael'thas looked at the design drawings of the mysterious tower, more bold and generous, and the magic materials satisfied Rex, otherwise with the design drawings of this mysterious tower, it is impossible to only have 100,000 gold coins, which is different from the city return scroll, just the city return scroll, one is black Kael'thas 10,000 gold coins, the design drawings of the mysterious tower are much more important than the return scroll, especially this is still a design drawing, according to the design drawings can be built by yourself.

That's why when Kael'thas first saw it, he thought that Rex had other purposes, because anyone with such a thing would hide it and keep the blueprints in their own hands.

Rex deliberately estimated that some of the magic materials that he deliberately asked for from Kael'thas were the key magic materials for the construction of the Tower of Mystery, and the others were available in Gilneth himself, and when Kael'thas calculated the price of the magic materials, they were all calculated according to the cost price, probably seeing Rex take out such a good thing as the design drawings of the Tower of Mystery, Kael'thas conscience found out.

Glancing at Kael'thas, Rex sighed in his heart, he was still short of money, otherwise, he would not have sold the design drawings of this mysterious tower at all, in the Warcraft system, few buildings can be built in the real world, and even if it is in the fortress era, Rex found that it is just those buildings, watchtowers, mysterious towers and defense towers and turrets,

Sell the Tower of Mystery, Rex is also forced to do so, seeing that there are still a few years left, that is, the time for the outbreak of the undead disaster, Rex did not quickly arm Gilneth into a hedgehog, Rex's heart was deeply disturbed, that division forced Gilneth to summon werewolves, Rex simply can't imagine how strong this undead disaster is, no, it should be said that Gilneth is how weak it is, this time to finish things, return to Gilness, Rex was bound to take action against Gilneth's army.

It is necessary to hold a military exercise, so that they can see how strong the Knights of the Round Table, which they call playthings, and how vulnerable their own army is.

One of the biggest weaknesses of the Wall of Greymane is that there is no fort built on it, after Gilneth built the Wall of Greyman, he thought that the Wall of Greymane alone could resist the invasion of the enemy, no, the idea at that time was not so, but because of the shortage of funds, the materials needed to build such a high wall are an astronomical amount, in Rex's opinion, Gilneys had accumulated many years of family funds because of this Greymane Wall was completely hollowed out, with the situation at the time, After building the Wall of Greymane, there was no energy left to build a fort and buy cannons.

And then this matter was delayed, because at that time, the Second World War, just stopped, the Terrans needed a stable environment, Gilneth was surrounded by the sea on three sides, and there were biting reefs, there were no enemies to dock at all, and the other side was also next to Lordaeron, all of which belonged to the Terrans' sphere of influence, so there was no war at all, and this thing was naturally forgotten.

But no one expected that the sudden appearance of the undead natural disaster caused the wall of Greymane to have no defense at that time, but there was no cannon on it, and Rex liked the turrets and defense towers produced by the Warcraft system more than the turrets, although it was 10,000 gold coins a piece, but it had a relationship with Kael'thas and said that it was the cost price for himself, not only the magic materials traded this time, but also the next time Rex bought it, but it was only once.

But this has already made Rex satisfied, he returned to Gilness to prepare, after buying some, plus the rest of the materials Gilneth himself has, and finally Rex gritted his teeth and was able to build thirty turrets, twenty defense towers, and ten mysterious towers, a total of 600,000 gold coins were originally required for fraud, and Gilneth finally only needed 100,000 gold coins to build.

Rex didn't believe that with the defense power of thirty turrets, twenty defense towers, and ten mysterious towers, as long as it was not the main army of the undead scourge, who could threaten Gilneth. By the way, the difference between the materials used to build this turret and the Tower of Mystery is not very large, and the turret seems to belong to the range of gunpowder, but it still involves some principles of magic, otherwise, with gunpowder alone, it will not be able to achieve such a great power of magic.

In the world of Azeroth, although technology and magic are parallel to the world, there is one thing that must be clearly distinguished, that is, the power of science and technology is not as good as the power of magic, which is like the law of the world, like Rex in the previous life, not allowing extraordinary power to appear, technology is king, in the world of Azeroth, although the existence of science and technology is also allowed, but it is difficult for him to transcend magic, this magic is a general term, the meaning of a qiē extraordinary power,

Walking into Dalaran, Rex and Kael'thas walked towards the bank opened by the goblins in Dalaran, the amount of 100,000 gold coins, Kael'thas does not have it, and Rex doesn't need so many gold coins, his own space ring can't fit, just go to the bank to transfer money, this has to be said, goblins started quickly, such a profitable industry, in the end, it was the goblins who first invented it, and there was no chance for Rex to intervene, even if it was Gilnes, there was also a bank, but the owner was not a goblin, It's just someone else.