books.google.de - When a cougar attacks a hiker in Mesa Verde National Park, the Landons have another mystery on their hands. Jack and Ashley are used to visiting parks with their wildlife veterinarian mother and photographer father, but this time their hands are full with a foster child called Lucky Deal. As Lucky and...http://books.google.de/books/about/Mysteries_in_Our_National_Parks_Cliff_Ha.html?hl=de&id=gPDwR4Udkq0C&utm_source=gb-gplus-shareMysteries in Our National Parks: Cliff-Hanger
