This book is amazing and I couldn’t put it down. I love how Kat Zhang wrote this book because you have to be very talented to write this book, because to write a book in first person with two people living inside someone is very hard. I think this book is about finding yourself, because its easy to lose yourself when you’re sharing your body with someone else. Eva is the recessive soul and her twin soul Addie is the dominant one. Eva is clinging to live in her body when everyone is telling her to let go. No one says her name, no one knows that she’s still there but Addie. And she still has the strength to fight on. This is why I love this series because it shows that you can fight on. I fully give this book Five Stars.