All In, the third book in the Naturals series by Jennifer Lynn Barnes, is about Cassie Hobbs and
the Naturals going to Las Vegas to investigate three brutal murders. This killer changes method,
with his identifying mark being a tattoo of numbers on his victim’s wrist. Cassie’s mother’s case
has also had a breakthrough, and Cassie must juggle her personal issues with the case the
Naturals have to solve.
This book, in my opinion, is the strongest in the Naturals series. All In
keeps you hooked, and with a breakneck pace, doesn’t lose you once you start reading. The
characters are layered and the stakes are raised. Fans of the series and young adult thriller fans
in general will love this book. This book is more complex than the books before it, and a definite
5 out of 5 stars.