The hafgufa, a sea creature first mentioned in the 13th century in Old Norse mythology, was believed to have roamed Icelandic waters.

But the origin of the creature can be found Old Norse mythology. Look through almost any old Norwegian fairy tale and a troll isn’t far away.

For the Euronews Culture countdown to Halloween, we’re taking a look at some of the lesser known mythical creatures of Europe. Today is the turn of Norway and its mythical trolls. Origin of the Troll ...