the dark ark 2020 book by john leifer - Thou Shall Not Kill

By John Leifer

The Dark Ark


It took only seconds for NORAD Headquarters to be transformed into a scene of utter chaos as early warning signals flooded in from a network of missile detection sensors. A torrent of men scrambled to their stations seeking to mitigate the threat of attack.

This was no drill. An Iranian ICBM had been launched from a silo near Chabahar, and was on a trajectory for Washington, D.C. Travelling at 18,000 miles per hour, the missile would reach its target in thirty-eight minutes.

The Secret Service operationalized DEEP DIVE, a protocol whereby the president, first lady, and key advisors were sequestered in a subterranean bunker beneath the White House. The group would have only minutes in which to avert a seemingly imminent catastrophe. Two million lives hung in the balance.

8,000 miles away, another devastating chain of events was unfolding aboard the Prometheus – a Navy vessel currently located in the Ulithi Atoll, 360 miles southwest of Guam. Known as the Dark Ark, the ship’s official mission was to catalogue the DNA of every known life-form, but its research extended far beyond its genetic library. The Prometheus possessed secrets that could change the world – secrets about to be stolen.

The Dark Ark is a captivating thriller that grips you from the very start and holds you in a vise-like grip until its final revelatory paragraph.

– goodreads

Leifer makes the behind-closed-doors discussions plausible as the action builds to a nail-biter of a cliffhanger. Tom Clancy fans will appreciate Leifer’s ingenuity in coupling suspense with a believable near-future scenario.


This intelligently written novel falls squarely into the difficult-to-put-down variety. Thou Shall Not Kill is a thriller of thrillers that really stands out from the crowd.

Darryl Greer for Readers’ Favorite
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Best Selling Author

John Leifer

John Leifer is a senior health care executive, consultant, academic, and writer. He is the author of The Myths of Modern Medicine: The Alarming Truth About American Health Care and After You Hear It’s Cancer: A Guide to the Difficult Journey Ahead.

John is also an accomplished fiction author – writing thrillers that draw upon his experiences with key governmental agencies and scientists, including serving on a presidential panel led by former national security advisor, Brent Scowcroft. 

John's Books

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The Dark Ark


A devastating chain of events is unfolding aboard Navy vessel Prometheus. Known as the Dark Ark, the ship's official mission was to catalogue the DNA of every known life-form, but its research extended far beyond its genetic library. The Prometheus possesses secrets that could change the world - secrets about to be stolen..

thou shall not kill 2019 by john leifer e1557171479886 - Thou Shall Not Kill

Thou Shall Not Kill


Thou Shall Not Kill reads like breaking news from the Jerusalem Post. Based upon exhaustive research into Israeli military history, Israeli doctrine regarding the use of non-traditional weapons, and the current state of threat posed by Israel’s foes, it is not only captivating, but credible.

8 seconds to midnight outstanding thriller award - Thou Shall Not Kill

8 Seconds to Midnight


8 Seconds to Midnight takes the reader on a non-stop thrill-ride that begins with the clandestine transfer of nuclear material from a secure Pakistani military installation thirty miles north of Islamabad to a group of radical Islamists.

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In this chilling prequel to 8 Seconds to Midnight, the most devastating terrorist attack ever recorded on American soil begins and ends without spilling a single drop of blood.

after you hear its cancer 2015 john leifer - Thou Shall Not Kill

After You Hear It's Cancer


When your doctor utters the word “cancer”, life changes in an instant. It is a moment when time stands still, a moment laden with anxiety and uncertainty. A new journey is beginning, and it is one for which you are likely ill prepared.

the myths of modern medicine 2014 john leifer - Thou Shall Not Kill

The Myths of Modern Medicine


The American health care system is terminally ill. It is astonishingly expensive, remarkably variable in quality, and incapable of stemming the rising tide of chronic illness in our population.

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