This book came as a surprise. I did not expect its ending. 
 When I started reading this book, I admit.. I had my doubts. I already predicted the said "twist", so I lost interest quickly. However, I picked it up again about a year later and I was truly surprised in a good way. 
 Monstrous starts off on a light note. Two characters are introduced... A "dad" taking care of her unlikely "daughter". Then things started happening in a wondrous fashion. It began with little missions that ended up to be a nightly occupation. Then Ren, the trustworthy boy comes into the picture. Kymera begins to feel weirdly and think about other things. She starts to question things and the story takes on a whole new array of emotions. 
 Don't read below if you haven't read the book. 
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 I felt bad for Kymera. Of course, I did. What happened to her is unfair and very tragic. However, I also feel good because she got these talents to save her from many obstacles. I also feel disappointed because she didn't have the life she should have had, but I feel relieved because she got another one.. In an odd way. I admit, I also feel frustrated because of the ending. I thought she was going to be.. I don't know... Accepted in the society again? More relevant to the people? Hmmm.. I saw that there's a next book though, so we'll see what happens then. :)