The folklore surrounding December 13th has held a special place in Norway since the Viking Age. It was thought to be the longest night of the year and the beginning of the Yule season. It was a dangerous night, since it was ruled by a female spirit, a vette or vaettir, called Lussi (“Light”). She was the mother or leader of the vettir (spirits) and other Huldrefolk (supernatural beings), and kin...