Science and survival techniques are combined in this hair-raising thriller. Twelve-year-old Jack Landon and his younger sister Ashley visit their wildlife veterinarian mother and photographer father when they begin to investigate the mystery of a wounded wolf in Yellowstone National Park. First in a new mystery series. Includes a park map.

Wolf Stalker 2001, National Geographic Society, Washington, DC

ISBN-13: 9780792276524

Trade paperback

Select
Wolf Stalker 2001, Turtleback Books, Washington, DC

ISBN-13: 9780606215336

Turtleback School & Library edition

Hardcover

Select
Wolf Stalker 2001, Turtleback Books

ISBN-13: 9780613840408

Turtleback School & Library edition

Hardcover

Select
Wolf Stalker 1998, National Geographic Society, Washington, DC

ISBN-13: 9780792270348

Hardcover

Select