National Park Mystery Series : Discovery in Great Sand Dunes National Park (Book 2)

by Aaron Johnson

Riddles - Lost Landmarks - Hidden Clues - Real Locations

The scavenger hunt continues in book two of the bestselling National Park Mystery Series.
After camping in Rocky Mountain National Park, Jake and his friends travel to the Great Sand Dunes in southern Colorado. Exploring the heart of the dunes, they stumble upon something both unexpected and dangerous. Through more twists and turns, Jake’s friendships and integrity are tested by choices that will demand smarts and courage.