“HAMMER is a roller coaster of personal conflict, avarice, and retribution across three continents. Joe’s protagonist, Jack Garrett, brings a conflicted, relatable character forced to evolve from the role of victim to that of avenger. Revenge thriller fans…strap in for a bumpy ride.”

- Jack Carr, #1 New York Times bestselling author of The Terminal List, True Believer, Savage Son, The Devil’s Hand, In The Blood, Only The Dead and Red Sky Mourning

“HAMMER is a rollicking thriller that moves from Texas to Bulgaria to South Africa…and shoots right through your nerves as Joe’s dialogue, wit, and artful use of metaphor take readers on an unforgettable journey of greed, despair, vengeance, and love. We haven’t heard the last of Jack Garrett…nor Joe.”

- Chris Dorsey, President/CEO of Dorsey Pictures & Forbes Contributor

"HAMMER is an electrifying tale of vengeance, resilience, and redemption. This gripping novel transcends the boundaries of the typical revenge thrillers to deliver a heart-pounding and emotionally charged narrative. Joe masterfully combines the world of mixed martial arts with a riveting and complex plot, creating a unique and compelling storyline that keeps readers hooked from the very first page. RELATIVE UNKNOWN is not just about revenge; it is a story of resilience, sacrifice, and the enduring power of the human spirit.”

- Rick Franco, former Marine Infantry Officer, CIA protective contractor, Anti-Terrorism/Force Protection contractor; Co-Founder, Four Branches Bourbon

“I am a huge political thriller fan, and a story like HAMMER is exactly the reason why. A thrilling story, following heroes you are rooting for and engaged with, fighting villains you despise, and an end that leaves you wanting more. I was ready to keep reading and follow Jack Garret through his next adventure.”

- Jim Liberatore, former President, and CEO of Outdoor Sportsman Group

“As an author of books, I’m pretty picky as to what I invest time in reading. It’s rarer still that I read a book and wish like crazy I had written it myself. That’s the condition I found myself in when I finished Joe’s new thriller, HAMMER. From North America, Africa, Europe, and back again, this gritty suspense novel takes the reader on a roller-coaster ride of sensations and emotions. The observer experiences the lowest-common denominators of the human species. They also encounter some of the kindest souls. And, then there is Jack Garrett. Like a rattlesnake basking on a rock in the Texas Hill Country, he wants only peace, until you step on him. The scum of the earth steps viciously on Jack, and they live to regret it. By the end, of HAMMER, the reader wants a break to catch their breath; they also feel a visceral need for the tale to continue.” 

- Mike Arnold, Ph.D., Distinguished Research Professor of Genetics at the University of Georgia, outdoor writer and author of Bringing Back The Lions

“When I read HAMMER, I thought it would be my book of choice for the next week or two. However, I couldn't stop without knowing what happened to our hero next and got through it in two cross-country flights. This book is as entertaining as any of Jack Carr's books and as thoughtfully researched as Connor Sullivan's Sleeping Bear. Thriller fans, prepare yourself for a new series to love.”

- Brad Lutrell, Co-founder, and CEO of GoWild

“A great read. Joe pulls it all together and makes the story pay off for the reader. His knowledge of the outdoors and firearms is spot on.”

- Bobby Cole author of The Dummy Line, Old Money, Moon Underfoot, The Rented Mule, and Silent Approach