... I wonder what. A riddle for you. What has no weight, but feels heavy when it falls back toward you, and can always be removed? Yet, there is only ever one of it, and you can never see it.

[ He'll simply look at her, unblinking, expectant, and grip the key tightly in his hand. It won't matter if she tries to run or not.

A soul on its own can't do much. Especially not one trapped by him. He is very, very hungry, and she is very appetizing, but frightening her will make her go down better. ]