For a Christmas special Helen Mark visits the snow covered landscape of Swedish Lapland in search of the mythical, and often elusive, Northern Lights or Aurora Borealis. In Sami culture the lights are thought to emanate from the souls of the dead and must be treated with immense respect. Traditionally the Sami remained indoors during a display but today the chance of seeing the Northern Lights brings many visitors to this remote part of Sweden. Helen Mark hears about the mythology which surrounds the Aurora and travels by sled, snowmobile and foot to try to catch a glimpse for herself. Along the way she uncovers a dramatic mountainous landscape.