Grand Canyon rescue

"Adventure starts in the Grand Canyon where Isaiah, Sadie, and Ethan discover a small box engraved with their names. The box contains a hidden message with mysterious clues that lead them on a scavenger hunt. As the kids are solving the carefuly crafted riddles on what seems to be a wild goose chase, they stumble across a clue scribbled on a ripped piece of fabric. "Help me," it reads. the kids are stumped by this clue. What can it possibly mean? Why is it so hard for them to figure out? Join The Campground Kids as they work together to solve the mystery in the Grand Canyon National Park"--Back cover.