Krissie was beyond stunned when she felt the cold blade close to her neck.
If she had made any movement earlier, then the blade would have really slit her throat.
Swallowing a mouthful of saliva nervously, Krissie remained perfectly still, clearly understanding that her life was at the hands of Mary.
"That's enough, Mary. She's not an enemy, so why are you scaring her?" Shi Tian intervened at this moment and told Mary to stop her action.
Although he wasn't sure why Mary was acting like this, he wasn't going to sit back either. No matter what, Krissie had somewhat helped him in the past, so he wouldn't do something like harming her unless she had attempted to harm him.
Just because he had killed people, doesn't mean he was a cold-blooded emotionless killer that would kill whenever he wanted.