Published by Random House / Ballantine Bantam Dell

Hardcover / Ebook / Audiobook



Relentlessly suspenseful and disturbingly timely, Bounty summons a chilling vision of our Internet culture gone mad, where freedom, privacy, and the rule of law are demolished by a crisis of nightmare proportions—and the future of justice lies in the hands not of the bravest but the most brutal.

When a notorious Wall Street vulture is executed in his high-rise office by a sniper’s bullet, it’s the kill shot heard round the world. Welcome to, a rogue website for vigilante assassins, where outraged citizens bid up bounties on corporate crooks and corrupt elites. As the number of targets soars, amateur bounty hunters and professional hit men compete to exterminate the condemned and claim their rewards, “proof-of-death” videos become Internet sensations, and the self-styled Robin Hood pulling the strings threatens to plunge the international community into anarchy.

Along with other law enforcement agencies across the globe, the FBI and its agents on the case—led by Roman Novak and Rosemary Michaels—are desperately seeking a way to outmaneuver and overpower an all-but-invisible adversary with millions of dollars at its disposal and the ability to cripple the most sophisticated attackers with a keystroke. Following a black-hat hacker extraordinaire down a rabbit hole of firewalls, encryption, and unbreakable codes leads Novak and Michaels into the virtual underworld of the darknet—a seemingly impenetrable haven for the illicit and illegal where Bounty4Justice’s mastermind is almost certainly hiding. But just when the agents think they are close to breaching their quarry’s digital fortress, they find themselves stalked by an army of cyber outlaws out for blood.


Byrnes fuses science fiction and espionage in this smart, near-future dystopic thriller. … the action-packed story line is full of plot twists and explores such topical matters as cyberterrorism and hacktivism. Byrnes raises some serious questions about humankind’s increasing dependence on—and assimilation with—the digital world.”

—Publishers Weekly


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The Genesis Plague (2010)



The Sacred Blood (2009)


The Sacred Bones (2007)



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Critical Praise


At last, here comes a worthy competitor to Dan Brown and The Da Vinci Code. … The book is worth it for shedding exciting fictional light on ancient mysteries.” —Publishing News


A breathless race through real historical fact laced generously with artistic license. … An immensely enjoyable read.” —The Bookseller

Byrnes puts a more contemporary spin on his material than most authors…” —Publishers Weekly

A terrific thriller melding … puzzles with modern-day archaeology and the immense knowledge … gleaned by forensic science. Action-driven…” —Publishing News (UK)

Fans of historical thrillers … will eat this up…” —Library Journal

…A pacy read with plenty of surprises…” —Hampstead & Highgate Express (UK)

Exciting, intelligent and incredibly true to life.” —Simcha Jacobovici, co-author of The Jesus Family Tomb

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