Continuing from previous page:
The serial killer ends up losing his apprentice and needs a new one. Kidnaps a baby and raises it after slaughtering the family. Only problem is the baby's older brother (still a very young kid) escapes the slaughtering and grows up in foster care. The serial killer raises the baby off the grid and starts at a young age teaching her to kill things and how to cut them up and such. One night, when the girl has reached about 17, she hears her 'dad' talking in his sleep about the 'boy that got away' and how he 'must find him because he knows my identity'. The girl is frightened but curious. She packs her a bag and runs away. ~End.
Now to fill in the details and happenings of the story!