High Survival — Carolyn Keene

AMERICA'S TOP TEEN DETECTIVES TEAM UP TO TOPPLE CRIME'S KING OF THE MOUNTAIN

NANCY DREW and a small group of adventurers hike into the Wyoming wilderness to sharpen their survival skills. But the higher they climb into the remote and rugged Rockies, the more perilous the risks become. Nancy suspects that the mounting dangers are more than mere accidents of nature -- and that the adventurers are headed for the most deadly survival test of all.

Meanwhile...
FRANK AND JOE HARDY, responding to Nancy's call for help, confirm her worst suspicions. The mountain is the focus of a million-dollar criminal enterprise, and a gangland mob has cut the expedition off from the outside world. An accomplice inside the group is leading them on a true trek to terror, and it's up to the three intrepid sleuths to blaze a trail to safety... in HIGH SURVIVAL.