"Hold on a minute." Hong Meihua shouted urgently, her face solemn. Luo Zheng turned back, suspiciously, and Hong Meihua continued, "So many people silently vanished without any news. It must be Charlie's doing. There's only one possibility: biochemical attack or poison. We've all eaten and drunk the same things, we're fine, so it's not food poisoning. The ones affected are outside, the inside of the room is fine, which indicates the problem is outside. It's not suitable to rush out."
"Any good suggestions?" Luo Zheng listened carefully, his expression turned serious, and he quickly asked.