All In (The Naturals, 3)

By Jennifer Lynn Barnes

The New York Times and USA Today bestselling series with over 3 million copies sold!

Three casinos. Three bodies. Three days. Crack the case with the Naturals series by Jennifer Lynn Barnes, #1 New York Times bestselling author of The Inheritance Games.

After a string of brutal murders in Las Vegas, Cassie Hobbes and the Naturals are called in to investigate. But even with the team's unique profiling talents, these murders seem baffling: unlike many serial killers, this one uses different methods every time. All of the victims were killed in public, yet the killer does not show up on any security feed. And each victim has a string of numbers tattooed on their wrist. Hidden in the numbers is a code--and the closer the Naturals come to unraveling the mystery, the more perilous the case becomes.

Meanwhile, Cassie is dealing with an equally dangerous and much more painful mystery. For the first time in years, there's been a break in her mother's case. As personal issues and tensions between the team mount, Cassie and the Naturals will be faced with impossible odds--and impossible choices.

Catch every thrilling twist and turn of The Naturals series in:

  • The Naturals
  • Killer Instinct
  • All In
  • Bad Blood
  • Dangerous Impulses
  • Twelve (enovella)


For more unputdownable series from Jennifer Lynn Barnes, don't miss the beloved Inheritance Games Saga and The Debutantes duet.

BUY THE BOOK

Published May 2, 2023

384 pages

Average rating: 8.67

70 RATINGS

|

Join a book club that is reading All In (The Naturals, 3)!

Franklin Book Club

Franklin Book Club is a space to share, discuss, and connect with fellow readers.

Community Reviews

The.readrose
Jan 28, 2026
10/10 stars
Jennifer Lynn Barnes, you definitely went "All In."

Currently my thoughts are paralyzed by the intense emotions I endured reading these 378 pages. It's hard for me to decipher how much of the emotions were based off of the content, or my personal connection having a deceased mother and the need to find answers.

But with that being said...

Sloan is my favorite character so I found it fascinating to learn more of her back story.
I also found myself understanding how the UNSUB found "beauty" in numbers.
Although Sloane is my favorite character, I am not like her when it comes to being a Natural (get it?) with numbers. But I, as a designer, can appreciate (excuse my french) a damn good pattern.

I don't want to be "that girl," but I need to stop typing before this review gets spoiler-y(?). Just ignore me, I need sleep. The point is this series is good. Pick it up....please.
Cindy Huskey
Jul 25, 2026
10/10 stars
Done. Can’t talk. Book 4 is calling…
Maya
Nov 10, 2025
8/10 stars
⭐️⭐️⭐️⭐️½ (4.5/5) | Audiobook via Libby
josiereadsalot
May 26, 2025
6/10 stars
3.5
b_marie
May 01, 2025
10/10 stars
I....
They broke my brain and my library is saying six weeks till I can fix it. This was amazing. Every reveal was perfectly timed, and I thought I had an idea of how the ending was going to be structured but Miss Jennifer said nope I am not predictable. I highly recommend this series to anyone who loved Criminal Minds cause this series is giving off those vibes but more personal.

See why thousands of readers are using Bookclubs to stay connected.