```html
"Sure enough, someone has been here." Chu Zhiyuan surveyed the surroundings of the stone wall, covered with dense small pits.
The wave of hidden weapons that shot toward them had rebounded, and these pits on the stone wall were caused by hidden weapons fired earlier.
"Really, someone has been here?!" Li Hongzhao furrowed her eyebrows, examining the pits and hollows, "More fierce than the hidden weapons we encountered."
Chu Zhiyuan said, "This is the second time the mechanism has been triggered; this person understands the mechanisms within the cave mansion."
"Too late by one step!" Li Hongzhao immediately felt disappointed.
She came to this cave mansion first to deal with Chu Zhiyuan, and second to seek Lu Yaofeng's inheritance.
But now it seems both goals are in vain, naturally leading to disappointment.
"Miss Song," Chu Zhiyuan reminded.