Over the Edge: A Mystery in Grand Canyon National Park

When their mother receives this anonymous e-mail shortly after broadcasting her controversial plan to save the condors in Grand Canyon National Park, Jack and Ashley Landon suspect it’s the handiwork of Morgan Rogers, a computer geek who has been placed in the family’s care.

When the death threat almost becomes a reality, the Landon kids must use their high-tech cyber skills to find out if he’s innocent or guilty before it’s too late.

Mysteries in our National Parks are written by an award-winning mystery writer, Alane Ferguson, and an award-winning science writer, Gloria Skurzynski.  This real-life mother-daughter team visits each park to do their research, then connects by phone, fax and e-mail to create their thrilling tales.