Mysteries in Our National Parks: Wolf StalkerBy: Gloria Skurzynski Series: Mysteries in Our National Parks In this fast paced adventure, the Landons trail a wounded wolf in Yellowstone National Park. The park is abuzz with rumors of a wolf attack. Meanwhile, a killer stalks the woods. Unaware of the danger, Jack and Ashley are more concerned about rebellious teenage foster child, Troy Haverson. From the opening moments at Old Faithful through 48 action packed hours, the tension builds: What is