Drake Decker, an ex-cop. Allie Ashe, a Navy veteran. The friends are avid geocachers. They are thrilled when they get chosen to take part in an invitation-only competition that takes place in an old-west town in the Arizona desert. A town dedicated exclusively to geocaching. The Cacheland Conspiracy is the first book in The Geocaching Mystery series.

Drake Decker and Allie Ashe are avid geocachers. They are excited to head to Boston for a well-earned vacation. During a chance encounter, Allie buys a book that tells the story of a mysterious lost treasure dating back to America's beginning. While out geocaching, Drake, Allie, and their friends find clues that prove there is truth to the legend. The Quincy Bay Quandary is the second book in The Geocaching Mystery series.

Drake Decker, Allie Ashe, and their two friends visit the Italian Alps for the vacation of a lifetime. While geocaching, the group becomes separated, and someone gets injured. While waiting to be rescued, one friend finds a piece of a five-hundred-year-old puzzle. The Secret of the Seven Valleys is the third book in The Geocaching Mystery series.

Allie Ashe and her friends Drake Decker, Ingrid Snyder, and Geneva Benson are thrilled when Allie is invited to the first ever Australian Outback Geocaching Invitational. Select teams from around the world gather to compete in this high-stakes event. Search for the Serpent's Stone is the fourth book in the Geocaching Mystery Series, where the four friends compete in what may be their most dangerous geocaching event yet.

Some treasures are meant to be found. This one was meant to stay buried. When Ingrid Snyder guides her friends on a geocaching trip through Denmark, they expect cache finds and scenic hikes. What they discover is a clue to one of Scandinavia’s greatest unsolved mysteries: a secret that leads to a lost Viking treasure. Following cryptic hints, the group soon realizes they’re onto more than a game. Each find draws them deeper into Denmark’s shadowed history—from a secret mission of the Danish resistance during World War II, to Viking burial mounds. But Ingrid, Allie, Geneva, and Drake aren’t alone on the trail. Treasure hunters seek the same prize. For them, the treasure isn’t a piece of history; it’s a pay day. As the geocachers race through windswept fjords, ancient ruins, and forgotten German bunkers, the lines between game and survival begin to blur. The final coordinates will uncover more than a geocache — they’ll reveal the dark price of obsession and the haunting truth of a treasure best left buried. Deception in Denmark is a pulse-pounding adventure of history, mystery, and the lure of lost treasure. Deception in Denmark is the fifth book in the Geocaching Mystery series.

When four friends, Allie, Drake, Geneva, and Ingrid head to Kenya for a geocaching adventure, they expect breathtaking landscapes, rare finds, and stories to tell back home—not danger. But while searching for a cache deep in Hell’s Gate National Park, they stumble upon a geocache that seems to be more than it is. The more geocaches they find, the more a mystery begins to unravel, a mystery that uncovers a group bent on stealing Kenya’s most precious resources. Shocked and desperate to avoid involvement, they try to walk away. Suddenly, the group becomes prey in a ruthless chase across the savanna, pursued by men who will do anything to protect their secret. Not knowing who to trust, the geocachers must rely on their navigation skills, quick thinking, and trust in one another to survive—and to expose the traffickers before more animals are lost. What began as a peaceful vacation turns into a fight for justice, a test of loyalty, and the ultimate high-stakes hunt. Blending adventure, suspense, and the raw beauty of Kenya’s untamed wilderness, The Nairobi Nightmare unearths a modern horror hidden beneath the thrill of the search. The Nairobi Nightmare is the sixth book of the Geocaching Mystery Series.

This book is perfect for keeping track of counties you've found geocaches in. Includes every county in every state, along with maps.

This omnibus contains the first three books of the Geocaching Mystery Series: The Cacheland Conspiracy, The Quincy Bay Quandary, and The Secret of the Seven Valleys.