Since it was confirmed that "Under Moon City" was akin to a mountain-climbing base camp, the task ahead seemed much easier to handle.
Despite thorough inquiries, they were unable to obtain any useful information.
Any information regarding mountain climbing simply no longer existed because... any monsters that failed in their climb and returned to the base of the mountain had forgotten most of their climbing experience.
It was to be expected.
Climbers, no matter how often they attempted the ascent, couldn't accumulate any relevant experience.
As for those monsters that successfully reached higher elevations and gained something from the journey, they all left Under Moon City one after another, unwilling to make a second climb, and equally unwilling to share anything related to the experience.
"Mr. Han, should we purchase some mountain-climbing equipment?"