After the tapping stopped over the phone, Liu Ba was planning to reply using the same method, but before he could tap, the other end of the line hung up.
Listening to the dial tone, Liu Ba chuckled and said to Jing Gui, "This mysterious expert really has some skills, he even gets this stuff."
In fact, this was just something Zheng Tan thought of doing spontaneously, since he couldn't talk. Before that, whether it was Teacher Xiao Bai or the case with the lost dog, when Zheng Tan had used this method, others would likely think he was just playing around with them, with a high chance they wouldn't understand it. However, Liu Ba, who was broad in expertise and wise in keeping things back, understood quite a bit, which is why Zheng Tan decided to give it a try. Earlier, when he was tapping on a picked-up metal piece, the other party didn't interrupt him, suggesting that they might have understood.
