I wonder if Violet and Mr Xavi had a thing in the past and if Violet was part of the THS in the past before leaving or running away.
I bet MR. Xavi is Angelina's father of her and will try to steal her turn her and use her like Violet.
here my points
1) Violet used part of THS to either run away or left
2) MR. Xavi wants Angelina to either turn her will and be Mr. Xasvi's master but trick her or use MC as a target
3) MR. Xavi is biological father of Angelina
4)
Note: i could be completely wrong if any point of the story
Angelina's biological father is dead and missed it.