Sub-tropical monsoon climate

"This is a natural cave," manager Liu explained to Zhao Yu when they arrived at the scene of the crime."We placed the electric box in the cave to provide electricity to the surrounding attractions and shops!"

"This cave ..." Zhao Yu looked at the cave carefully and asked,"where does it lead to?"

"I can't get anywhere!" Manager Liu said,"this is a dead hole. It's only this deep! We didn't use rocks to block it on purpose!"

"Oh ..."

Zhao Yu walked around in the cave and realized that the cave was very small. It was at most ten square meters!

"Because there's electricity," manager Liu said."We installed an iron door. It's usually locked, but someone broke it!"

"When the victim was found," Captain Zhou said,"the iron door was also half open. Otherwise, it wouldn't have been found!"

"I heard," Xi menna asked,"that the victim was discovered by a tourist?"