Sadie by Courtney Summers, is the kind of book that keeps you on edge during its entirety. It’s told from the point of view of the protagonist Sadie and the true-crime podcast of a journalist West McCrae.The story follows 19-year-old Sadie Hunter as she sets out on a relentless journey to find and kill the murderer of her 13-year-old sister Mattie. The death of her sister broke Sadie in an incomprehensible way and she vows to seek her revenge on her mother’s ex-boyfriend Keith, who abused her while living with them and who she believes to have killed her sister.

Leaving her poverty-stricken hometown Cold Creek without telling anyone, Sadie journeys throughout Colorado. She meets all sorts of people and encounters an abundance of crazy situations. In  in a desperate attempt to find Sadie, her surrogate grandmother, May Beth Foster, brings in West McCrae. A journalist who begins documenting Sadie and Mattie's story in a podcast called “The Girls”, and begins his own journey of finding Sadie.

I can’t find a single thing to criticise about this book except for the cliff-hanger ending. From the beginning to the end, my heart ached for Sadie. It gave me chills hearing about her trauma. She is fierce and independent and doesn’t let things like her stutter define her. It’s not just her, I feel as if I got to connect with all of the characters on a deep level. Summers portrays all of their emotions perfectly, from May Beth’s worry to Sadie’s mother Claire’s guilt, she captures everything realistically and flawlessly. The storyline flows perfectly. I liked how the book involved elements of romance but not so much as to overpower the main plot. The amount of foreshadowing is incredible and leaves readers in awe. Overall, this book is an easy 10/10. I would recommend this to anyone looking to get into the mystery genre specifically, but also to anyone that just likes a good stand-alone. Trust me, this book will not disappoint anyone.