#1 New York Times–bestselling author C. J. Box is back and this time it’s Cassie vs. The Lizard King in the ultimate finish to The Highway Quartet.

She almost caught him once. Now, he’s back. 

For three years, Investigator Cassie Dewell has been on a hunt for a serial killer known as the Lizard King whose hunting grounds are the highways and truck stops where runaways and prostitutes are most likely to vanish. Cassie almost caught him...once. 

Working for the Bakken County, North Dakota sheriff's department, Cassie has set what she believes is the perfect trap and she has lured him and his truck to a depot. But the plan goes horribly wrong, and the blame falls on Cassie. Disgraced, she loses her job and investigation into her role is put into motion.

At the same time, Kyle Westergaard, a troubled kid whom Cassie has taken under her wing, has disappeared after telling people that he’s going off on a long-planned adventure. Kyle's grandmother begs Cassie to find him and, with nothing else to do, Cassie agrees―all the while hunting the truck driver. 

Now Cassie is a lone wolf. And in the same way that two streams converge into a river, Kyle's disappearance may have a more sinister meaning than anyone realizes. With no allies, no support, and only her own wits to rely on, Cassie must take down a killer who is as ruthless as he is cunning. But can she do it alone, without losing her own humanity or her own life?

Read the first chapter of Paradise Valley


Pre-order Paradise Valley Today

Don't want to wait in line when the tour starts? Pre-order signed copies of Paradise Valley through Barnes and Noble here, while supplies last.

The reviews are in...

"...excellent conclusion to a quartet of loosely related novels...this top-notch thriller, which makes vivid use of the American West."

-Publisher's Weekly *STARRED REVIEW*

"Box deftly delivers page-turning suspense. Readers who couldn’t put down Badlands will definitely want to pick this one up."


"Box's many fans will devour this dark thriller, which is sure to be another hit for the author."

- Library Journal *STARRED REVIEW*

"Box handles both the set pieces and the longer arc with professional dexterity....you’ll race toward the satisfying climax without caring about anything else."

-Kirkus Reviews

"...packs a mean punch and nonstop suspense–and is definitely some of Box’s best work yet. This is certainly a top contender for his best non-Pickett book so far and a must-read for thriller, mystery, and crime fans everywhere. Always one to land well-timed twists and turns that readers never see coming, C.J. Box unleashes some of his best surprises yet, delivering a satisfying conclusion to his Highway Quartet..."

- The Real Book Spy

"With an intricate, tightly-written plot and a compelling family-oriented backstory, ... you be glued to the page as Mr. Box spins the yarn to it’s conclusion with the sure hand of a master wordsmith at the peak of his powers."

- Mysterious Book Report

"... a treat for crime thriller aficionados. Box’s trademark Hemingway-esque minimalist prose is on keen display as usual, and in Cassie Dewell he’s created a female protagonist every bit the equal of more traditional male genre staples. Riveting and relentless."

-Providence Journal

“Paradise Valley” reaches the same level of frightening realism that made C.J. Box’s “The Highway” so terrifying. Box keeps “Paradise Valley” taut, with twists that are as suspenseful as they are believable. Box, winner of the Edgar Award, again proves his superior storytelling skills in “Paradise Valley.”

-Washington Post/AP

"This is my first C. J. Box book, and it won’t be my last. Fans already familiar...will be thrilled, and new readers will certainly find a new addiction."

- Criminal Element

"Box is at his absolute best here, introducing interesting and memorable characters throughout the book and mixing them into a suspenseful, well-conceived and perfectly paced plot...this is a book --- and a series --- not to be missed."


"Thrilling plot, evocative setting, deep characterization; this book has them all."


"C.J. Box is one of America's finest mystery authors. This is one of Box's best."

-The Globe and Mail