Once they entered the cave, the path ahead was completely dark, with nothing to illuminate the way. However, as high-ranking cultivators at the Grand Duke and Emperor stages, Aldrian and Dureus could see in the darkness. They continued walking deeper underground, and as time passed, Aldrian was astonished to see the passage gradually widening.
"Young master, I know you heard last night that the 'thing' has a guardian. The guardian is actually a kind of spirit. I don't know what kind of spirit she is, but she's incredibly strong. From what I've heard, the guardian here has always been the same spirit since ancient times," Dureus sent through a voice transmission as they walked.
