I listened on audio and the range of the narrator astounded me. Overall though, I was disappointed by this book. The overall story intrigued me, but when it switched to Polly's perspective is was a much slower listen. I loved pretty much all the parts from Deming's perspective but found Polly frustrating as a character. I really wanted to sympathize with and understand her but seeing her son in too much pain for too long before her choices were truly explained kind of ruined that for me. Then once the book got there, her justifications just kind of fell flat, or were too little too late. And overall the tone was just so sad for so long that it became hard to return to. I wanted to like it more than I did.