The Secret of the Seven Valleys - The Geocaching Mystery Series, #3

Beyond the mountain peaks, a secret lies in the valley. 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.    When the quartet regroups, they discover the puzzle revolves around a legendary cache of work by an Old Master from the High Renaissance.
The group pools their geocaching skills to track down the long-forgotten treasure. Little do they know, someone else has their eyes on the prize.     The Secret of the Seven Valleys is the third book in The Geocaching Mystery series.