and they all lived happily ever after...
Did they bollocks.
The book makes clear that Mark Sway was left traumatized by what happened to him and would need counseling, him and his family would spend the rest of their lives looking over their shoulders, and he would never see or talk with Reggie Love again and Reggie herself would need round-the-clock FBI protection.
This was nearly all ditched though for a happy ending where they contentedly fly off into the sunset whilst Reggie and Foltrigg kiss and make up (glossing over the fact that his actions had put Mark in serious danger).
Typical Hollywood schmaltz