Award-winning author R Lawson Gamble lives and writes in Los Alamos on the Central Coast of California. In addition to his Zack Tolliver, FBI series he published Los Alamos Valley with Arcadia Press and Payu's Journey, an analogical journey through the eyes of Australian animals. An ardent historian, the author appears in a documentary about the bandit Salomon Pico recently aired on Invitation Au Voyage for ARTE Europe.

The Zack Tolliver novels are all crime mystery fiction. Unlike other such series in the Native American category with protagonists in the same location from book to book, Zack and Eagle Feather find themselves in different settings in each new novel––new environments with different cultures, history, and political undercurrents, all of which add to the difficulty of solving this new mystery.

Rest assured, certain features will never change. The reader may expect Zack Tolliver and Eagle Feather in every story. The relatives, associates, and friends will not change, but might not necessarily make an appearance. There is always a crime (usually a murder), a mystery, police procedures to a larger or lesser degree, lots of action, suspense, accurate well-researched history, accurate topography, Native Americans (not always of the same nation), and an element of mysticism and/or paranormal.