With a swishing sound, the figures of Xiao Yan and You Er simultaneously plunged into this place.
"Such formidable pressure." As soon as the two of them flooded into the central red zone, they appeared halfway up one of the two cliffs.
The cliff was incomparably steep, and paths even continuously emerged partway up, winding and connecting to the top of the cliff.
"What is this thing?" You Er had just wanted to look around this mysterious cliff when her vision in front of her was attracted by the brownish patterns on the cliff path, and she couldn't help reaching out a hand toward them.
"Don't!" Seeing this, Xiao Yan let out a sharp cry. Although he did not know what traits the cliff possessed, he vaguely felt that some rather terrifying things were contained within it.
You Er pulled back her hand before she could be caught off guard, but fortunately there was no major harm done. However, this pitch-black cliff exuded an intangible threat, and even beneath the black patterns where You Er had just touched, a trace that was difficult for ordinary people to detect seemed to still be hidden.
"This is..." Prompted by You Er's actions, Xiao Yan couldn't help moving closer to the cliff face.
The surface of the cliff wall consisted of irregular black stones, but beneath them, some obscure power was covered.
"Thunder Power?" Xiao Yan exerted his utmost abilities, yet he detected hair-raising Thunder Power contained beneath the cliff stones.
"This place is probably a thunder field." Xiao Yan's expression couldn't help turning ugly. The Thunder Power hidden beneath the cliff stones was probably not the least bit inferior to Thunder Lord's level. For the current Xiao Yan, it was an existence even more dangerous than the Calamity Mourner in the far