The owner continued, "According to the rules of Five Lake Street, I can only give you the key after you pay the room fee in full." The owner wasn't afraid of their identity as Beast Tamers at all. He held the bunch of keys in his hand as he said in a businesslike manner, "On Five Lake Street, you have to follow the rules of Five Lake Street."
"No problem." Yu Huang gave the owner 16 spirit stones on the spot.
After receiving the spirit stones, the owner took out an instrument and swept it across the spirit stones. When he heard a beep, his expression relaxed. This instrument was called a spirit stone appraisal device. It could appraise every spirit stone and determine if they were officially registered circulating spirit stones.
An unregistered spirit stone was just a stone that couldn't be used.
