The atmosphere within the Blue Flame Secret Realm grew even more tense with the appearance of the Crystal Stone Tower. Chen Haotian and Su Wanqing stepped into the tower side by side, and a wave of chilling air rushed toward them, forming a sharp contrast with the scorching environment outside.
The interior structure of the Crystal Stone Tower was complex, with overlapping corridors resembling a labyrinth. Every crystal shone with a faint light, yet failed to provide a clear sense of direction. The runes on the walls gradually lit up with their footsteps, as if some unknown force were watching them.
"There is something wrong with this place; the runes seem to be absorbing our spiritual energy," Su Wanqing said with a frown, noticing that her spiritual energy was recovering at a slower pace.
Chapter 129