"Oh? Did you read about it from a book? But wasn't this Dungeon discovered half a year ago? "
Edward, who was not far away, heard their conversation and seemed to be interested. "Kid, you must be bragging. I've heard many people mention this wall when I was in the camp. Everyone who has seen it has a deep impression of it, but no one knows how tall this wall is. There are even special bets on the height of this wall. Unfortunately, everyone has their own opinions, and no one has been able to produce any conclusive evidence."
"Er, it's not that complicated. We all know that the position of the sun in the sky is constantly changing. But if it's not for a long time, the change can be ignored. The light rays emitted from the sun, hmm, can be seen as a straight line." "When light rays land on a non-transparent object, it will leave a shadow on the ground. If you measure these objects and their shadows, you will come to an interesting conclusion. At the same time, regardless of the size of the objects, they and their shadows have a fixed ratio."
"In the end, I used this conclusion to calculate the height of this wall."
"Wait, tell me again. How did you do that?" Edward was confused. Light rays, shadows, ratio … these things were too new for the old scoundrel.
"Specifically speaking, I know my height and can measure the length of my shadow on the ground. This way, I can get a ratio. Then, I used my feet to measure the length of the shadow cast on the ground by the Dungeon Wall. Finally, I can calculate the approximate height of the Dungeon Wall."
"Is it that simple?" The Old Thief's eyes widened. Although he still didn't quite understand, it didn't prevent him from feeling a sense of awe in his heart. Should he say, 'As expected of a learned fellow?' His mind was filled with all these strange things.
The rookie Hero roughly understood the little follower's train of thought, but because of this, the girl's face revealed an even more shocked expression. "You even know geometry?"
"Er … I think so."
"Aren't you breaking the rules by doing this?"
"No, lighting a fire … I don't know anything about it."
"Well, I have more and more reason to suspect that you're just trying to avoid cooking."
Fortunately, Lolo did not dwell on this issue. Soon, she had a new question. "Such a high wall. Are the giants living inside?"
The girl's speculation was not without reason. Not only was the wall ridiculously tall, even the bricks used to build the wall were shockingly large. Each brick was about two meters wide and six meters long. No brick kiln could produce such huge bricks.
"Not the Giant Tribe." Edward chimed in. "Those stupid giants don't have such high craftsmanship. They can't even build a pigsty, let alone this magnificent city wall. It is said that the houses in the inner city are almost the size of the buildings on the ground. So, the race that built this place should be about the same size as us humans."
Luo Bu stretched out a palm and pressed it against a stone brick. Although it had been through the baptism of time, the surface of the city wall was still smooth and flat. The gaps between the bricks were extremely small, and no plants could take root here. The moment the youth's fingers came into contact with the stone brick, the Great Magus suddenly discovered that he had lost contact with the surrounding magical elements.
Tsk tsk, it was just as recorded in the books. The underground city wall could actually block magic.
This was because every brick used to build the city was mixed with a certain amount of Mithril.
Of all the known materials, mithril was the best at isolating elemental energy. However, mithril reserves had always been very scarce, and mithril mines were usually buried very deep. Aside from the dwarves, no other race had any effective means of exploration. In fact, mithril was very rare even in the dwarven world. Mithril was also very precious to the dwarven blacksmiths, and they would only be willing to use a little when forging exquisite equipment.
This type of equipment was also known as anti-magic equipment. During the Second Magic War, anti-magic equipment was regarded as a trump card against human magicians. Unfortunately, because the production of Mithril was too low, this type of equipment was destined to be unable to be mass-produced.
If those irascible dwarven craftsmen saw this wall, they would probably stomp their feet in anger. How wasteful was it to mix mithril into every brick? To build such a wall, the amount of mithril consumed would be an astronomical figure.
Of course, the defensive effect was also incomparably terrifying.
Basically, any magic below the level of Forbidden Spell would have no effect on this city wall. Even if a Level Nine Forbidden Spell fell on this Anti-Magic Wall, it would only have less than half of its power.
In a sense, the existence of this city wall seemed to be specifically used to restrain the profession of mages.
However, it was strange that humans had mastered magic less than a thousand years ago, and this underground city had been sleeping here for tens of thousands of years. Why would a guy from the previous civilization be wary of a threat from tens of thousands of years later? This did not make sense at all.
The future Supreme Magus Your Honor quickly overturned this conjecture. No, this city wall was not used to deal with magicians. The reason was simple — it was too tall.
If it was really to deal with human magicians, instead of building such a tall wall, it would be better to use the extra Mithril to create anti-magic equipment, just like what the Dwarves did in the Second Magic War.
Hearthforge was known as the Fortress of Steel. It was one of the most majestic cities in the Dawn Continent. In order to conquer it, the humans had paid a heavy price. However, even the walls of Hearthforge were less than 30 meters tall, which was far higher than the height of many siege weapons. Magicians' favorite levitation spell could actually only allow people to float 20 meters above the ground. With the addition of 500 anti-magic equipment, it was a tough battle.
Even if the ultimate human weapon, the Floating Fortress, was included, the maximum height of such a heavy weapon was only 100 meters. So, if it was just to defend against magicians, there was no need to build a 240-meter tall giant.
Looking at this majestic wall, the future Supreme Magus Your Honor could not help but feel curious. What kind of enemies did the people on the other side of the city wall face?
As the party leader, Hansen was thinking about something else. The Grade 2 Swordsman looked up at the city wall and lamented, "It's a pity we can't climb up. Otherwise, there would be many good things up there."
"Hmm?"
"The city wall usually has some heavy long-range weapons. If we can get our hands on one, we can sell it to any faction and earn a lot of money. It's a pity that the stairs used to climb up the city wall have been destroyed. The walls are too tall, and no one can climb up now."
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