This is part of a scene at the beginning of book two that shows what Vincent is like and what he is capable of, given the opportunity.
From Inside the Grey House:
“Their parents were also born here. They live by my rules and believe their children are foolish. They can’t understand why they would want to leave when I provide everything they want. All the money they could need, all the food, everything. They have the freedom to come and go as they please, as long as they give me what I need and keep quiet. Their parents understand that. They are among my most loyal.”
“And what did they say when you caught their children?” Vincent had one hand around the female’s throat, squeezing her breast with the other, and was pressing her into the wall. She whimpered again.
Cat Stark 