There are other reasons why the Floating Continent does not build underground passages. Pen Fun Pavilion wWw. ｂiquge。 After all, the Floating Continent has a lot of money, not only does it have enough money, but it also has enough magicians - but they still haven't done it.

If you use magic to maintain the underground passage, it is not impossible, although the consumption is large, but it is much more efficient than using airships to transport, and the consumption is relatively less. However, in that case, it will inevitably cause some damage to the environment of the "wall", which is something that people on the floating continent do not want to see. The "wall" intercepted countless demonic beasts from the sunset grassland, and without it, the people of the floating continent would have been eaten by demonic beasts in ancient times. Projects related to the "wall" must be carried out with great caution.

Although the surface people do not think about protecting the environment, they have to consider whether they will be discovered by the floating continentals - if they make an accident such as a mountain collapse, it may be discovered in advance. Moreover, they don't do anything too crazy, such as blowing up the "wall" and letting the monsters pass—they don't want to destroy the floating continent, they just want to defeat the surface people. For them, the Floating Continent is an endless treasure trove, and what they want to do is to capture, not destroy.

However, it is also possible for them to build small underground passages. Their machines have some advantages in digging tunnels, and may be able to dig a thinner tunnel - although it can't be transported on a large scale, but it's no problem transporting dismantled mechanical whale parts. In that case, they might evacuate some of their personnel along that pathway? Skelle knew that they couldn't give up the big automatons, and they couldn't get through them—the battle was inevitable. However, being able to intercept the surface people earlier can sabotage their plans sooner, and no matter what they want to do, they can't let them succeed.

Skyle sent a large number of magicians, mercenaries, and magic balls to search for them, and carefully searched along the "wall". This is not a huge amount of work, because according to previous research, the area where the passage can be built is quite limited, and in many places it is likely that the excavation has already caused an accident such as a landslide.

It didn't take much time to find the tunnel, and the surface people also had some survey techniques and knew where they couldn't dig the tunnel. The magicians found a small underground passage about two meters in diameter - although it was no problem to get people through, and it was able to transport some parts that were not very large, but it was ...... It's hard to get too many people and devices to leave.

The most important thing is that the underground passage has been destroyed. When it was discovered, the section leading to the outside of the "wall" had already been blown up, and it was obvious that the surface people had done it themselves, and they probably didn't want the floating mainlanders to chase after them.

The destruction was so complete that there was no way to investigate the whereabouts of the passage. Skell ordered the mages to look for other passages, even those that were not easy to build—the surface people were cunning, and that passage might have been built to confuse the people of the Floating Continent, or even that it might have been built in the undestroyed part at all.

They didn't finish checking until the whole war was completely over, however, this time it was really none.