"Farewell, I will avenge you."
As he pondered, a deep voice came from the cellphone, and then the call was abruptly cut off. Simultaneously, the man's left hand fell limply down.
Ling Chen was startled and immediately reached for the man's philtrum. As expected, there was no breath; he was dead.
He then took out his phone, lit up the screen, and examined the man's face closely, noticing a trickle of black blood seeping from the corner of his mouth.
"A poison sac?"
His brow furrowed slightly. This man had been carrying a poison sac in his mouth at all times. Such tactics were common, often used on devoted warriors in ancient times. Even in modern days, many secret organizations still use these archaic methods because they are secure, effective, and hard to detect.