Mu Yu woke up immediately, “What’s wrong?”

“I am on my way to our lab. You go straight to Qing Tian Building. I will bring the toolbox with me.”

“Bring the toolbox to the Qing Tian Building? Is there a…”

“I just received a call from the police, there has been a murder case there. I have to hang up now.”

“What? Murder case? Are you sure it’s the Qing Tian Building…”

She panicked when she heard the ...