Download or read book Wolf Stalker written by Gloria Skurzynski and published by National Geographic Books. This book was released on 2007-05 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twelve-year-old Jack, his younger sister, and the family's teenage foster child Troy go to Yellowstone National Park, where Jack's mother, a wildlife veterinarian, is investigating the report that wolves reintroduced to the park have killed a dog there.