Are You Replaced?

The book The Replacement by Brenna Yovanoff, was a very interesting book. I have never read anything like it before. The book is unusual, and has a mystery to it. Mackie Doyle the main character in the book isn't a normal teenage boy hanging out with his friends or going to parties, in fact he has to be forced to be out by his friends. To me Mackie is very strange, he doesn't act like a normal boy, but he tries too, which  makes it worse because people always asks him why is he acting so weird and if everything is okay.
     
 Mackie was a replacement of a real boy about 16 years ago, coming from a world of puddles and dark tunnels, which is called the Underground world of Gentry. As I read the book, I had many questions like "Why do the parents of Mackie still accept the fact that he is not a full human, but a half human and half demon?" Mackie is allergic to many things that are important in the human world such as iron and blood, so its really hard for him to cooperate with it. As the book went on, Mackie started feeling uncomfortable and tired everyday, and the reason he was feeling that way was because he was dying. Yes... dying. This replacement of a baby 16 years ago, was dying. His skin was turning pale and he felt dizzy and just couldn't work with anything.
      
As for Emma, Mackie's younger sister is a happy person who is just like a normal girl, until... she finds out that Mackie is dying. She does whatever she could to make him all better again and make him live. She finds out about it by her friend that usually comes over to her house. She knows that he is a replacement, and exactly where he comes from which is the underground world of Gentry. Emma is courageous because it takes a lot of courage to go to a world where your not from, especially if its full of demons and dead people walking around. Emma gets this little drink for Mackie in order for him to stay alive. But, Mackie has to do many things to keep Emma away from danger from the demons.  I think of Emma as a sweet girl because she accepts Mackie knowing he is a replacement of her real baby brother 16 years ago.
      
The Replacement is a very good book, and I think many people would enjoy the book as much as I did. It is filled with many details that make me want to read the book even more. Everyone should read how "Mackie is an outsider, even in his own home."