C187 Longhu Pill

"System, let me check, how much space is behind this?" Guo Zhenyu asked.

"I can't sense anything. I can only see this stone wall. The space behind the stone wall has been blocked off." The System replied helplessly.

No wonder the System didn't notice that this place was hollow. It turned out that it had been disturbed. It seemed that the item he was looking for was hidden behind this place