Xia Lei was not the least bit worried that Hattori Mei would see through his cover. Hattori Mei’s abilities were certainly not as sharp as Yang Shan’s or Sperry’s. The men were both seasoned intelligence officers. The experience they had was sufficiently valid to point out Xia Lei’s flaws. 

Xia Lei was more worried about the contents of the brocade box. 

An urge manifested in his mind, causing his left eye to twitch slightly. There was a bottle of liquid nestled within the box. The container and liquid within were both transparent. He noted its existence but was unable to detect the nature of the mysterious fluid. 

“What is she trying to do? Is she planning to kill me?” Xia Lei thought to himself darkly, all while keeping his calm facade as he received the box. He feigned confusion. “What is this?” 

Hattori Mei answered, “It's poison. We call it the Grim Reaper. It’s currently the most lethal poison to exist. It’s able to deliver its effects in ambient temperature. Upon contact, the target will die within five minutes. Anyone who comes into contact with the victim will die too. There’s no way to save the target.” 

So it really was poison....