Glad I didn't listen to the negative reviews.

Enjoyed every minute of it!

Terrible. All the characters are generic and stereotypical to the extreme. No research into the scientific aspects was done. It seemed like he watched a badly written porno and a CSI and said "awesome, now I can write a thriller!". (Btw, not at all thrilling)

His was a decent audiobook. The narrator did a good job, although I dislike when they constantly add superfluous stuff like, “billy shrugged and said”.

I loved this book so much that I immediately bought the next book in the series. I liked the fast pace of the story. The narrator, Edoardo Ballerini is fabulous. I highly recommend this book.

This was an incredible read. The characters, narration and well heck from beginning to end, non stop thriller! Can’t wait to read the rest of the series! Bravo Barker! I am your newest fan!

This was a good listen. Kept me interested throughout.

A new favorite read of the year for me. This crime thriller is very fast paced and entertaining. Many surprises that I didn't see coming. Multiple point of views, including a dairy from the Fourth Monkey Killer. I'm glad I didn't read too many reviews before reading the novel. It can so easily be spoiled.