One by one, they climbed down from the metal stairs. Qin Zheng was first, and he inspected the tunnel there. There was still faint fresh air there, but it was clearly harder to breathe in this depth.
"Normal people won't be able to last here," Qi Huan frowned as he arrived down.
Qin Zheng nodded in agreement. "Circulate your Eon Energy to make sure that you can move around freely. It's not going to be easy to move around when it's hard to breathe in this place."
"Got it."
Lu Wan sighed as he started to circulate his Eon Energy. Thanks to the poison that has a similar effect, he has some 'immunity.' Even though the air level in this place was lower, he still could move around well.
Mu Xin frowned slightly. "There's a weird aura in this place."
Ye Jiao put her hand on the wall of the tunnel. Her brows creased too. "Eon Energy is moving in one direction slowly."
"What?"
"Where?"