The Black Silent

Coming in July 

Scientist Ben Anderson has gone missing without explanation. As his adopted daughter Haley and a recuperating investigator, Sam unravel the clues to find him, they are astonished by Ben’s recent discoveries – which Ben had carefully kept hidden from them – and are caught up in a deadly and relentless race. For Ben Anderson’s scientific breakthroughs have stirred the greed of men who will do anything to possess his secrets.

Ben has discovered breathtaking life forms at the bottom of the sea, organisms he calls Arcs. Their extreme energy efficiency defies imagination, comparable to a race of humans that could survive one year on a slice of pizza. Ben believes that some Arcs live, and continue to reproduce, for millions of years. The implications of Arc biology are mind-blowing. Their undersea byproducts could solve the energy crisis as we know it today for the next 2,000 years. They could also spur a cataclysm, causing mass extinctions and sending humans the way of the dinosaurs.

Most shocking of all for readers of The Black Silent, Arcs are real, and these incredible ideas are the tentative but factual conclusions of knowledgeable scientists in numerous articles printed in respected scientific journals.

As fact collides with fiction, Sam and Haley’s frantic search for Ben leads them to grapple with these discoveries and those who would own them. Arc-based technology could end life on earth as we know it or make it unthinkably better.

The result? A human dream…or nightmare….and everything in between.

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Prologue   An attempted murder underwater reveals a sinister plot

Unacceptable Risk

Now Available 

Sam Wintripp, a half Tilok Native American espionage expert, must foil a double plot to unleash a deadly brain-altering genetic vector into U.S. cities and a potent electronic virus into the worldÍs interconnected computer systems.

A powerful and potentially dangerous form of biotechnology has fallen into the hands of a terrorist mastermind. With it he plans to use microscopic vector particles developed originally for therapeutic purposes to make genetic modifications in humans on a large scale. The unlucky victims become senselessly violent until they die 48 hours later. Sam fears that the simultaneous outbreak of random violence and a massive attack on essential US computer systems will destabilize financial markets, a circumstance that will allow anyone with advance knowledge to make huge profits.

A crack team of high-tech experts tracks the plots' mastermind through cyberspace while Sam pursues him across the continent. The fate of millions of people depends upon their success.

Unacceptable Risk is the second Sam Wintripp novel, following Overfall.

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Chapter 1„A platoon of mercenaries disturb the peace around Sam's mountain cabin. Sam must discover who wants him dead, and why.

Overfall
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Travel to the islands off British Columbia, the forests of Borneo, and the island of Manhattan in Dun's third adventure novel. 

After a risky water rescue, a pair of unlikely allies find themselves embroiled in a plot to turn the latest advances in gene therapy to deadly use. As the plot twists and turns, readers will be pulled into a thriller as gripping as the whirlpool currents that give the book its name.

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Chapter 1„Sam Wintripp, cousin of Necessary Evil's Kier, settles in for a relaxing vacation on his yacht.
Chapter 2„Sam's calm is broken by an unknown woman's desperate dash for the safety of his boat. 

At The Edge
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Deep in a redwood forest lies a deadly secret that two sworn enemies—joined in an extraordinary mission—must uncover to survive.

Dan Young, a big city corporate attorney, and Maria Fischer, an environmental activist and attorney, are professional rivals whose disagreements have recently threatened to spill over into personal animosity. The philosophical rift between them is profound, but their adversarial relationship is turned upside down when Dan's client sends him on a bewildering mission—to hand-deliver $500,000 in cash to Maria Fischer.

A simple plan gone awry

Excerpts
Prologue
Chapter 1
Chapter 2

A USA Today National Bestseller!
Necessary Evil

A private jet crashes in the snowbound mountains of northern California, bringing with it a plane full of exotic toxins, paramilitary shock troops, and a blizzard of death.

Kier Wintripp, a renowned veterinary doctor and Tilok Indian, and Jessie Mayfield, a big city FBI agent, are brought together when the thunderous crash draws them into the forest to investigate. There they discover the twisted remains of a corporate jet and nine bullet-riddled bodies bearing silenced weapons. The jet's cargo: a secret so astounding that its owner will do anything to protect it...

A villain with the cunning of Machiavelli

Excerpts
Chapter 1

Character Profiles
Kier Wintripp
Jessie Mayfield
Grandfather, a.k.a., Stalking Bear

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