clue

"What, someone died in the family?"
"Okay, okay, I'll be right back!"
Erica Xu received an urgent call.
Then, his face changed drastically and he said to Noah Zhao: "Erhu, it's time to go to work. We have to go back quickly."
"What's wrong?"Noah Zhao asked with a puzzled look on his face.
Erica Xu said: "Many people died in our community!"
Noah Zhao was stunned, his expression somewhat surprised: "What happened?"
"I don't know what's going on. Anyway, Moria has gone back....