Behind the wooden door was a spacious room that was covered by a faint fluorescent light. Xiao Yan slowly walked, in as he gazed about in all directions. Surprise gradually surged onto his face. The inner wall of the entire room was wrapped by a creamy white layer of jade. Even the ground under his feet was put together by pieces of neatly arranged white jade without the presence of any crack lines. That faint fluorescent light was actually being emitted from these white jade pieces.