C777 A Life and Death Test

Upon hearing Tang Yu's words, the Tang Dou was also very puzzled. He asked, "What's so strange about it? What did you discover?"

Tang Yu pointed to the sky and smiled. "The sound that came just now was very strange. Don't you think so?"

"The voice from the old man just now?" Tang Dou felt baffled. "I don't think it's strange. It's very normal."

"No, it's very abnormal."

Tang Yu said faintly