Former Army Ranger Tucker Wayne and his war dog Kane are thrust into a global conspiracy that threatens to shake the foundations of American democracy in this second exciting Sigma Force spinoff adventure from New York Times bestselling authors James Rollins and Grant Blackwood.

Tucker Wayne’s past and his present collide when a former army colleague comes to him for help. She's on the run from brutal assassins hunting her and her son. To keep them safe, Tucker must discover who killed a brilliant young idealist—a crime that leads back to the most powerful figures in the U.S. government.

From the haunted ruins of a plantation in the deep South to the beachheads of a savage civil war in Trinidad, Tucker and Kane must discover the truth behind a mystery that leads back to World War II, to a true event that is even now changing the world . . . and will redefine what it means to be human.

With no one to trust, they will be forced to break the law, expose national secrets, and risk everything to stop a madman determined to control the future of modern warfare for his own diabolical ends. But can Tucker and Kane withstand a force so indomitable that it threatens our very future?

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From the Author

About James Rollins

JAMES ROLLINS is a #1 New York Times bestselling author of international thrillers that have been translated into more than forty languages. Known for unveiling unseen worlds, scientific breakthroughs, and historical secrets, Rollins' knack for breakneck pacing and stunning originality has been hailed by critics and embraced by scores of millions of readers around the world.

The Critics Rave

The New York Times says that his "roguish charm comes from his efforts to persuade readers the story is credible [through] real-life sources for his novel's science, history and geography." Rollins' rare blend of action, suspense, and knowledge was also mentioned by the Huffington Post, which stated that "After Crichton passed away in 2008 he clearly passed the baton to James Rollins, who like Crichton, is a renaissance man."

NPR calls his work "adventurous and enormously engrossing..." and the New York Journal of Books had this to say: "If you're a fan of smart, entertaining adventure fiction, this is your summer beach read writ large....All the science, all the history, and all the locations are masterfully intertwined. The characters are multi-dimensional. And the story is, well, a corker."

The Story Teller's Story

As a boy immersed in the scientific adventures of Doc Savage, the wonders of Jules Verne and H.G. Wells, and pulps such as The Shadow, The Spider, and The Avenger, James Rollins decided he wanted to be a writer. He honed his storytelling skills early, spinning elaborate tales that were often at the heart of pranks played on his brothers and sisters.

Before he would set heroes and villains on harrowing adventures, Rollins embarked on a career in veterinary medicine, graduating from the University of Missouri and establishing a successful veterinary practice. This hands-on knowledge of medicine and science helps shape the research and scientific speculation that set James Rollins books apart.

Explosive Page-Turning Adventures

The exotic locales of James Rollins novels have emerged as a hybrid between imagination, research, and his extensive travels throughout the United States and Europe, as well as New Zealand, the South Pacific, China, Southeast Asia, Africa, Australia, and South America. Recent jaunts include book tours and stops across the country and several European nations to give talks, seminars, and media interviews.In recent years, much of James' travel has involved meeting readers in small and large groups, at writing and fan conferences, and even aboard seagoing "seminars." James' mentoring and coaching skills have made him a sought after writing instructor and guest speaker for workshops, symposia, conventions, and other forums throughout the country.

James Rollins is the author of nine thrillers in the bestselling Sigma Force series (Sandstorm, Map of Bones, Black Order, The Judas Strain, The Last Oracle, The Doomsday Key, The Devil Colony, Bloodline, and The Eye of God); six individual adventure thrillers; and the Jake Ransom middle grade series (Jake Ransom and the Skull King's Shadow, Jake Ransom and the Howling Sphinx.)

From the Back Cover

Sigma favorites Tucker Wayne and his military dog, Kane, are back in action in this latest masterpiece of suspense and adventure from New York Times bestselling authors James Rollins and Grant Blackwood. And this time, the mystery hits close to home . . .

War Hawk

Tucker Wayne’s past and his present collide when former army colleague Jane Sabatello comes to him for help. She’s on the run from brutal assassins hunting her and her son. To keep them safe, Tucker must determine who killed a mutual friend, a brilliant young idealist—a crime that Tucker discovers leads back to the most powerful figures in the U.S. government.

From the haunted swamplands of the deep South to the beachheads of a savage civil war in Trinidad, Tucker and his beloved war dog, Kane, must work together to uncover the truth behind a mystery that traces back to World War II, involving the genius of a young code-breaker named Alan Turing. The threat of this enigmatic and dangerous secret has repercussions that could change our world forever . . . and redefine what it means to be human.

With no one to trust, Tucker and his exceptional loyal companion Kane will be forced to break the law, expose national secrets, and risk their own lives to stop a madman determined to control the future of modern warfare for his own diabolical ends. But can Tucker and Kane withstand a force so indomitable that it jeopardizes our very future?

Praise for The Kill Switch

“Combine Rin Tin Tin and James Bond, and you get Kane, a vastly appealing, smart, brave dog outfitted with the latest high-tech gadgetry for saving the world from some pretty horrible stuff. His pairing with handler Tucker Wayne—a former Army Ranger with similar qualities—makes for a riveting, smart page-turner.”—Maria Goodavage, New York Times bestselling author of Soldier Dogs

“Exceptional. . . . Rollins and Blackwood succeed brilliantly.”— Publishers Weekly (starred review)

“The taut and complex story sprints across the globe from Russia to Istanbul to southern Africa to the United States, and offers a diverse cast of well-developed characters and a tightly woven plot that intrigues, excites, and doesn’t let go.”— Library Journal (starred review)

“A fast and furious thrill ride that satisfies from the first page until the last. Brilliant in all respects.”— Providence Sunday Journal

“Rollins knows how to deliver a terrific page-turner, and teaming up with Blackwood, coauthor of novels with Clive Cussler and Tom Clancy, proves to be a success. The mix of Blackwood’s military knowledge and Rollins’s background as a veterinarian makes the narrative seem authentic. While Tucker Wayne is a terrific character, the star of the novel is Kane, a Belgian Malinois and one of the best dogs in thriller literature. The Kill Switch is the start of a new series, and the next book cannot come soon enough.”— The Huffington Post

“A fantastic adventure story with nonstop action [that] shows the close bond between dog and partner, and the readers will fall in love with this canine and his handler.”— Crimespree magazine