Miniature history lesson

Tim, Caroline, and friend are standing in a high mountain pass which had been one of the routes for Jews and Allied pilots, among others, who sought to escape from Nazi-occupied France during WWII. Local savvy mountaineers, called passeurs, guided them at risk of their own lives. Some were betrayed by neighbours who collaborated with the Occupation. The passes were closely watched by Austrian ski troops in the service of the Third Reich, and they shot travellers on sight.