When a cougar attacks a hiker in Mesa Verde National Park, the Landons have another mystery on their hands. Cliff-Hanger weaves Native American folklore, natural science, and geography into a heart-pounding thriller. This title is one of several in the thrilling Mysteries in Our National Parks series by the award-winning, mother-daughter team, Alane Ferguson and Gloria Skurzynski. The afterword by Will Morris, former Chief of Interpretation and Visitor Services at Mesa Verde, outlines the dangers of cougar attacks and the need to protect wild animals.