Toni Dwiggins

e3d45dd02b8f0ad8976fa4.L._V158864193_I’m a third-generation Californian who migrated from southern Cal to northern Cal. What I like most about my state is that one can go from the ocean to the mountains in one day, with a lunch stop in the desert. I like it so much I’ve set my forensic geology books in those settings.

I’m author of a US History textbook, and have contributed to texts in the sciences. I’ve done tech-writing for the Silicon Valley computer industry, and that experience hatched an idea that became my first novel, about an attempt to sabotage the nation’s telephone system.

I went in a different direction with the Forensic Geology Series, taking mystery into outdoor adventure and thriller territory.



Twitter: @ToniDwiggins

Novel Donations

Volcano Watch : The Forensic Geology Series

Volcano Watch : The Forensic Geology Series

NO WAY OUT–so says the note in the pocket of the murdered mayor. The volcano beneath her town is seething, and the fate of Mammoth Lakes now rests in the hands of emergency planner Adrian Krom. But Krom has his own agenda. Investigating the case, forensic geologist Cassie Oldfield tracks mineral clues to discover how the mayor died–and what she found. As the volcano moves toward red alert, Cassie races to prevent ‘no way out’ from becoming a prophecy.


Bad Water : The Forensic Geology Series

Badwater : The Forensic Geology Series

Forensic geologists Cassie Oldfield and Walter Shaws embark on a perilous hunt–tracking a terrorist who has stolen radioactive material that is hotter than the desert in August. He threatens to release it in America’s most fragile national park, Death Valley.

But first he must stop the geologists who are closing in.

As the hunt turns dangerous, Cassie and Walter will need grit along with their field skills to survive this case. For they are up against more than pure human malice. The unstable atom–in the hands of an unstable man–is governed by Murphy’s Law. Whatever can go wrong, will go wrong.

And it does.

What Other’s Are Saying About Badwater

“A fast paced thriller with the terrifying theme of radiation exposure as a weapon. CSI type fans will appreciate the science.” – Bookstack Reviews

“The mystery kept me guessing, the suspense made me sweat, and the pace was as blistering as the heat in Death Valley.” – Good Book Alert

What Other’s Are Saying About Volcano Watch

“I couldn’t put this one down!” –

“The first half of Volcano Watch is structured like a mystery, and the tone is brooding as Cassie mourns the loss of a friend while the geologists monitor the volcano in anticipation of raising the watch status. … The latter part of the book turns into pure thriller with enough heat and ash for any action fan.

And I have to say that in terms of character, the scene with the morphine injection rocked; if you read this book you’ll know what I mean.” –

Other Books By Toni Dwiggins

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Disclaimer : Books which have been donated by an individual author, company or the like have been neither vetted nor reviewed for content and have been submitted at the discretion of the writer.  Likewise, the intellectual property of the writer is neither endorsed by nor a reflection of Authors For Wounded Warriors, the Admin, Guns ‘n’ Hoses Charity Hockey Game nor the Wounded Warrior Project.


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