Lee Cain isn’t a hero—he’s a survivor. And he’s nobody’s b*tch. When terminal cancer pushes Cain to the brink, an assassination attempt thrusts him back into a life of violence. But this isn’t a random hit—someone wants Cain silenced after he stumbles on a devastating secret: the billionaires profiting from cancer are also hiding its cure. The shadowy organization known as Artemis will stop at nothing to protect their quest for immortality, and Cain has just become their number-one target. Hunted through the gritty streets of New York and the blood-soaked nightclubs of Mexico, Cain must do the unthinkable—forge a fragile alliance with La Sombra, the ruthless cartel that wants him dead. Navigating a deadly world where humanity’s darkest ambitions come to life, Cain has only his wits, fists, and an unflinching resolve to rely on. As the lines blur between vengeance and survival, Cain faces a harrowing choice: save himself or risk everything to avenge the countless lives sacrificed in the name of greed. Blood Feud delivers relentless action, unforgettable characters, and a visceral exploration of what it takes to survive. Drawing from the author’s background in combat sports, high-stakes leadership, and human endurance, this electrifying thriller pulls no punches. Perfect for fans of Lee Child, David Baldacci, and Gregg Hurwitz, it will leave you questioning just how far you’d go to stay alive.   "BloodFeud: Raising Cain  isn’t a book—it’s a brawl. A brutal, tequila-soaked street fight that grabs you by the throat on page one and keeps swinging to the final bell. If you’ve ever wanted to know what it feels like to get punched in the face without stepping into the cage, this is your huckleberry." — Forrest Griffin, New York Times bestselling author of  Got Fight? , former UFC light heavyweight champion "A flashbang of action—relentless, explosive, and wildly entertaining. Shadowy global organizations, deep conspiracy, and an antihero you can’t help but cheer for— BloodFeud  is a survival thriller that hits hard and cuts deep." — Jason Redman, New York Times bestselling author of  The Trident , retired Navy SEAL "Martin Rooney can flat out write. Razor-sharp prose, electrifying pacing, and a deep knowledge of what it takes to survive make  BloodFeud  a truly memorable read. I can't wait to see what Mr. Rooney does next." — Eli Cranor, bestselling, Edgar Award winning author of  Don't Know Tough “ BloodFeud connects like a left hook from a heavyweight boxer. Martin Rooney knows how to take down an opponent while also delivering a fascinating tale to thriller loving readers!” —Eric P. Bishop, author of The Body Man series  "Bloodfeud is an absolute knockout! Martin Rooney delivers nonstop action and heart-pounding intensity from start to finish. I tore through this book—couldn't put it down. Lee Cain is a force of nature, and I can’t wait to see where this story goes next." —Frankie Edgar, former UFC Champion “Pure pulp action at its most savage . Skull-cracking violence and dirty fists! If Jack Reacher had a meaner, more unhinged cousin who solved problems with broken bones and a sky-high body count, it would be Lee Cain.” — Teresa Brock, Best Thriller Books “In Martin Rooney's dynamic novel, Lee Cain has entered the thriller world with a 'take no prisoners' swagger. Join him and enjoy the wild ride—and the promise of more Lee Cain to come.” —Michael McKinley, coauthor of thriller  A Quiet Life , Willie: The Game Changing Story of the NHL's First Black Player , and Ice Capades: A Memoir of Fast Living and Tough Hockey “Blood Feud is a broiling tale of murderous rampage and unfiltered chaos. It’s these dark qualities that make Martin Rooney’s fiction debut a real killer.” — Kashif Hussain, Best Thriller Books Martin Rooney is no stranger to the fight. An internationally renowned fitness expert and combat sports specialist, Rooney has spent over three decades in the trenches of physical and mental warfare. He is a Kodokan judo black belt and a Brazilian Jiu Jitsu brown belt who has trained UFC champions, Olympic medalists, and world champions in several different disciplines. A former U.S. Olympic bobsledder and two-time Guinness World Record holder, Rooney is also the creator of the Training for Warriors system, which has transformed over a million lives across the globe.   From consulting for Fortune 500 giants like Nike and Prudential to working with elite military organizations like the Navy SEALs and Army Rangers, Rooney’s knowledge runs deep. He holds a Master of Health Science and a Bachelor of Physical Therapy degree from the Medical University of South Carolina, alongside a BA in Exercise Science from Furman University. He now serves as Chancellor of Lionel University. Rooney has penned 12 previous books, but BloodFeud: Raising Cain is his first foray into thriller fiction.