A sympathetically written mountain climbing story in which three boys make amends for a friend's death that could have been prevented. Caused by the necessary delay in getting a rescue party, Jim's tragic accident sets Mitch, Red and Chris to thinking about the use of flares to give more immediate notice of climbing mishaps. They persuade Rangers in Olympic National Park in Washington to let them make an expedition to bring back convincing photographs of tests with orange smoke flares, and their resulting adventures with cougars, with the Rangers' understanding that their flares will not be S. O. S. signals, make an exciting and thought provoking story. Already known for his other books on similar themes, Mr. Stapp's writing is again characterized by a very obvious expression of ideals and a warm feeling of the vitality of nature and the out of doors. A good adventure story, this is morally and vocationally valuable as well.