A great river blocks the path

Ling Han put this strange Dragon Crystal away, and they continued forwards.

He could study it slowly, and there was no need to rush things now.

Four hours later, they encountered another fierce beast, but its strength was much lower. After they killed it, they very naturally obtained another Dragon Crystal. However, this was a very "normal" Dragon Crystal, and there were no strange patterns on it.

"Could it be that only stronger creatures would produce this kind of patterned Dragon Crystal?" They guessed.

This was very easily verified because they encountered a colossal creature not too long after. This was a massive tortoise, and it was slowly crawling in the mountains. However, every step of its feet would cause the mountains and earth to shake, creating an astonishing commotion.

Boom!