On the other hand, ordinary humans, who were not detected by the Soul Tower, could effortlessly cross over, as long as they evaded the nodes of the Defense Tower. Even if they were detected by the warning tower, it was unimportant.
The Soul Tower was an exception; its surveillance range was too broad, and it specifically targeted souls. Therefore, even a High-level King would have difficulty resisting soul-targeted attacks from the Soul Tower.
So, to traverse the Central Mountain Range, a new route had to be found.
By chance, Feirick discovered that rats had a remarkable ability to find their way. They could burrow through places that appeared bereft of paths, finding little ditches and furrows. As a result, he bred several rats as pets, using them to find pathways through the Central Mountain Range.