Zack Tolliver FBI Mystery Series

Book Six  of the Zack Tolliver, FBI Series, CANAAN’S SECRET is here!

Give me a book that opens with what looks like a religious ritual killing of an abducted teen male on top of Canaan Mountain, Utah, several possible explanations and very few clues, and an author who knows how to keep readers dangling, and you’ve got me from the first page.”

Viga Boland for Readers’ Favorite






Book One of the Zack Tolliver, FBI series, THE OTHER. OtherFINAL

“The hunters noticed the circling birds against the rose-tinted sky above the rimrock and saw where  the flat rays of the early morning  sun glinted on something that didn’t belong there and the three of them walked that way.” So begins FBI agent Zack Tolliver’s hunt for a vicious and clever child killer.

Five Star Review from Reader’s Favorite



MestaclocanMESTACLOCAN  (Meh-Stah-cloh-can) is an Aztec Shape Shifter. When an early morning phone call from an old friend, now a homicide detective in San Francisco brings news of a third murder victim, her throat slashed as by an animal, FBI agent Zack Tolliver is called to assist. But what deadly creature will they pursue?

“I loved it. It kept me on the edge of my seat every  lunch hour – I couldn’t wait to get back to  it.   Super job.”  P. Dozios: SYV News




“ZACA is one great ride. It serves up everything I need for a page-turning read.”   Barbara Hodges, Author

For FBI agent Zack Tolliver, a trip to the Central Coast of California  turns into dangerous business when he becomes immersed in a case involving drug smuggling, murder, and an old enemy. The clues don’t add up, the victims pile up, and the danger deepens.




“CAT is a lovely, fast-paced mystery that will hold readers’ attention…It is a well-developed story and R Lawson Gamble’s writing style makes every scene and setting visible to readers. ”   Michelle Stanley: Readers’ Favorite

A mountain lion hunts its hunters, a client is injured, Eagle Feather is consumed by guilt.  Zack must help his friend and mentor hunt it down. But he soon learns this is no ordinary cat, and this will be no ordinary hunt.





Faced with an apparent double suicide in the desert wastes of the Mojave National Preserve, Zack Tolliver, FBI, Professor Susan Apgar and Eagle Feather must discover if a crime was committed and solve it before they too become victims. 




In this fifth novel of the Zack Tolliver, FBI series readers will find all the elements of an exciting crime suspense mystery: lost treasure, romance, a western gunfight, and ancient Indian mythology.

“Living both the past and the present creates a tension that makes the story work beautifully.”   Jack Magnus, Reviewer; READERS’ FAVORITE








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