I'm stunned. 100/10, hands down. 

This book was LAYERED, and oozed with secrets and darkness. It was 700+ pages but didn't even feel like it. I was so drawn to the story and mystery that I simply could not put it down. And mind you, I went into this book blind so that was an insane ride. 

I'm not going to spill the synopsis because you can look it up for yourself. I'll just say one thing and leave it here. This book will sink its claws into you and stay with you for the rest of your life. I don't think I can ever stop thinking about it.