Toni Dwiggins is a USA Today bestselling author. She takes forensic mystery into the wild.

She found her way to writing this kind of story because she loves to read mysteries and thrillers, loves the outdoors, and loves picking up intriguing rocks.

Every rock has a story to tell. Where did it come from? What does it reveal? Geologists are detectives, well suited to mystery stories. To a forensic geologist, earth evidence tells the story of something unlawful that somebody did. Toni's geologists investigate crimes against lives, and crimes against the land — which are often intertwined.

In the words of her protagonist Cassie Oldfield: "This was what I dreamed of, when I dreamed of work: the moment of capture, when I’d grab hold of a piece of the earth and give it an identity. A name, a set of vital statistics, and—the holy grail of forensic geology—an address. I tracked you down, pal. I know where you hang. You’re mine."

That address is always in the outdoors.