Seven King Mutant Beasts

"No, that's not right!" Dwight exclaimed, his eyes flashing with surprise as he interrupted the other's thoughts. He looked at the ubiquitous trees and slowly said, "If we consider the normal density of trees on a mountain, such a number of trees could only grow on a mountain thousands of meters high."

Frowning, Dwight bent down to pick up a handful of soil. "A few hundred meters high mountain can't accommodate so many trees. Moreover, the soil here is similar to other mountains and has no special characteristics."

Hearing this, Shaun also paused, and they both pondered deeply. Suddenly, a flash of insight struck him. "Unless... this is a hollow mountain!"

The soil indicated it was a mountain of a few hundred meters, yet the abundance of trees suggested a massive mountain of thousands of meters. The only explanation for this discrepancy was that it was a huge mountain that had been hollowed out, likely intentionally by a creature.