For use in schools and libraries only. The Landon family makes a trip to Death Valley National Park, accompanied by a mysterious new foster child, 14 year-old L

The Landon family travels to Glacier National Park to investigate why grizzly bear cubs are disappearing and become involved with a ten-year-old Mexican runaway

This thrilling series roars back to life with the release of Mystery #13, Night of the Black Bear. Something very strange is going on in Great Smoky Mountains N

The Landons are in the Caribbean, in Virgin Islands National Park, to figure out what is destroying the coral reefs and causing the hawksbill sea turtle to disa

Something in the Virgin Islands National Park is destroying the coral reefs and causing the hawksbill sea turtle to disappear--and the Landons are trying to fig