This underground world seemed vast and boundless, but it was also desolate. Everywhere Adrian looked, there was not even a single person, let alone a tree. This caused him to frown. If there were no living beings here, then where would the Nine Dragon Essences be?

Adrian stopped in his tracks and looked to Bainbridge. "Do you hear that? Is there any movement?"

Bainbridge perked up his ears. Following the sound, Adrian discovered its source. It turned out that not far away on the mountainside w