Tides of Fire: A Sigma Force Novel
Released On: Aug 15, 2023

In the latest riveting thriller from the #1 New York Times bestselling author, an international research station in the Coral Sea comes under siege during a geological disaster that triggers massive quakes, deadly tsunamis, and volcanic eruptions. To stop the world from burning, it’s up to Sigma Force to uncover a secret buried at the heart of our planet.
The Titan Project—an international research station off the coast of Australia—discovers a thriving zone of life in an otherwise dead sea. The area teems with a strange bioluminescent coral that defies science, yet holds great promise for the future. But the loss of a military submarine in the area triggers a brutal attack and sets in motion a geological disaster that destabilizes an entire region.

Massive quakes, volcanic eruptions, and deadly tsunamis herald a greater cataclysm to come—for something is stirring miles under the ocean, a threat hidden for millennia.

As seas turn toxic and coastlines burn, can Sigma Force stop what has been let loose—especially as an old adversary returns, hunting them and thwarting their every move? For any hope of success, Commander Gray Pierce must search for a key buried in the past, hidden deep in Aboriginal mythology. But what Sigma could uncover is even more frightening—something that will shake the very foundations of humanity.

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Critical Acclaim

  • "Along with a number of helpful illustrations, the author mixes his considerable scientific knowledge with ancient myths, speculation, and imagination...There’s plenty of brisk action in this undersea yarn, of both the people vs. people and coral vs. people variety...A solid Sigma Force adventure that’s sure to please thriller fans.”

    Kirkus Reviews (Reader Review)


  • Q. What’s Tides of Fire about?
    A. I describe the book as a disaster movie in novel format. It’s ... Read More
  • Q. Before we get into that, for the uninitiated, who exactly are the heroes of Sigma Force?
    A. They’re a team of former special forces soldiers who have bee ... Read More
  • Q. The novel opens in the past, in 1815, aboard a British ship during the eruption of Mount Tambora in Indonesia. How much of that story is historical?
    A. I based the book’s prologue on written accounts from that time, specifically by the lieutenant ... Read More
  • Q. The modern story takes place aboard an international research station two miles under the sea. In your book, you have detailed schematics of the station and its support structures and ships. How realistic is your construction of such a station?
    A. As much as possible, I stuck to the reality and limitations of such ... Read More
  • Q. You all also share many details and examples of other vessels, specifically the advancements of autonomous, AI-driven war ships. What you describe is terrifying—but is it also real?
    A. Again, everything that appears in this novel is based on either shi ... Read More
  • Q. You also touch upon the Chinese efforts to reach the moon, including their recovery of a stash of rocks during their last mission. You bring up a malfunction that occurred during this effort—and an astounding discovery made from those lunar rocks. Were those details also true?
    A. They were. China’s lunar lander did mysteriously break down w ... Read More
  • Q. You’re talking about “the blobs.” Could you share what those are and how they tie to the moon’s formation?
    A. The consensus of scientists today is that the moon formed when a sm ... Read More
  • Q. Moving on to other strangeness hidden down deep, Tides of Fire covers some fascinating details about deep-sea life.
    A. As an avid scuba diver, I’ve always been interested in this t ... Read More
  • Q. Does that include the amazing coral featured in this book?
    A. It does. Coral has a long and interesting biological history. In fa ... Read More
  • Q. And what about the theories you raise in the book about octopuses?
    A. I’m sure that will raise a few eyebrows—as did the peer ... Read More
  • Q. In regard to extraterrestrial life, your novel touches upon UFOs—or UAPs, “unidentified aerial phenomenon”—and about the search for life beyond our planet.
    A. I find it interesting that, back in January of 2021, the CIA declas ... Read More
  • Q. Closer to home, Tides of Fire also delves into Aboriginal mythology—the stories and beliefs of the First Nations Peoples of Australia. You even offer some intriguing insight into how history supports such myths. Are those stories and theories real?
    A. I believe there is much more research that needs to be done concern ... Read More
  • Q. As this the 17th novel in the series. Does a new reader have to have read the earlier books?
    A. Not at all. I tailor each story so a new reader could jump into the ... Read More
  • Q. Moving beyond the book, I also understand you’re active in your support of American veterans, even earning the Silver Bullet Award for charitable work from the International Thriller Writers. Could you tell us a little bit about your efforts with veterans?
    A. Sure. My support for veterans first came about after I participated ... Read More
  • Q. Speaking of adventures, what are you working on now?
    A. This past winter, I launched Cradle of Ice, the second book in my M ... Read More


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