An exciting premise, followed by great build-up, but lose the grip on the second half. 
 What I EXPECTED: 
 Helena (the main MC here) loves her psychopath father. 
 But her father unfortunately doesn't know how to properly love her back. And that's why his existence started to threaten Helena's current family (husband & children). 
 Now, Helena need to choose between to-kill, or to set her father free, even if her husband and children's life are at stake. 
 I expected an emotional outburst, a difficult choice to make because no matter how psycho his father is, he is STILL her father. A man that she once loved so much, back when she didn't know how wrong her family is. 
 What I GET: 
 200 pages of hunting and survival tips. 
 50++ pages of cheap drama with easy solution. 
 It's like the author wanted to rush the ending and decided to (view spoiler)[ Let Helena's father shoot her first, so she could shoot him if she doesn't want to die! He's a psychopath anyway. He might want to kill his daughter because he loves her! (hide spoiler)] 
 What a tedious, boring read. A waste of great premise.