One year after her successful trip across Glacier National Park with Howard Eaton, chronicled in Through Glacier Park, mystery novelist Mary Roberts Rinehart was back in the saddle, heading into the rugged Western portion of the park with her family and ready for more adventure. She wrote, looking at the daunting road ahead, But all this was before us then. We only knew it was summer, that the days were warm and the nights cool, that the streams were full of trout, that such things as telegraphs and telephones were falling far in our rear, and that before us was the Big Adventure. Rinehart s...