Life-threatening accidents keep plaguing the Landon family as they investigate the mysterious deaths of white mustangs at Zion National Park in Utah. Even before they get to the park, Jack Landon knows that Ethan Ingawanup spells trouble. Things start to go awry after Ethan and his sister—two Shoshone kids—are placed in the Landons' care. The questions begin to mount after Ethan teaches Jack and Ashley the ancient Ghost Dance: Are all the hair-raising events just coincidental? Or is there some strange magic in the dance ritual? The answers await in the raging waters of a slick-rock canyon called The Narrows. The afterword by Lyman Hafen of the Zion Natural History Association discusses white mustangs and public lands in Utah.