Mystery, adventure, and a dangerous rescue await Ben and Bekka Cooper and their cousins, Kyla and Jack, at Grand Canyon s Phantom Ranch. The family reunion quickly turns into a weekend of thrills, chills, and a near spill over a cliff into the canyon below. But there s a sneaky thief. Who is it? Twisted Trails in Grand Canyon gives young readers what they ve come to expect from a National Park Mystery a book they can take to the park and live out. 139 pages, softcover.