Bøker av Jefferson Marshall

On a summer vacation to Garner State Park, Colter Voss and his friends dive into the crystal-clear waters of the Frio River. Come along for swimming by day and two-stepping by night while the group pieces together the puzzles of an age-old mystery.

On a surprise camping trip, a group of kids search for a mystery animal lurking at Caprock Canyons State Park. They explore the trails and landmarks of the park and discover clues about the creature. It will take all of the kids working together to solve this mystery and protect the park!