Greg Jenner is joined by historian Dr Janina Ramirez and comedian Kae Kurd in medieval Iceland to delve into the world of old Norse literature. It's full of elves, giants, trolls, gods, deadly mistletoe and eight-legged horse babies. Anything goes in a world created from the decapitated body of a giant where a squirrel runs communications! But what was the ultimate purpose of these stories? Who wrote them? And what do they teach us about Viking culture? Produced by Greg Jenner and Emma Nagouse