In a port in Northland, Thorgal comes to help young Ingrid, attacked by robbers. To thank him, she offers him a necklace decorated with a pearl of amber. But this precious gift is poisoned: he brings Jolan into a deep sleep from which nothing can pull him.Departed in search of Ingrid, Thorgal discovers a village threatened by a gigantic fire, where all men seem to be in the same curse as her son. What happened? Only their wives and especially Huldra, the goddess of amber, know that.