9780792276678. Pre-owned: Good condition. Trade paperback. Language: English. Pages: 160. Trade paperback (US). Glued binding. 160 p. Contains: Illustrations. Mysteries in Our National Park. Intended for a juvenile audience. Jack and Ashley explore Zion National Park with their family as Dr. Olivia Landon investigates the strange deaths of some wild white mustangs. When two Shoshone kids Ethan and Summer are placed in the Landons foster care trouble begins. Although he teaches Jack and Ashley the Ghost Dance Ethan makes no secret of his dislike for Anglos. Includes a park map.