Tempted by the runes

Madison Berger is visiting Dublin with her family for a Viking re-enactment festival, when she chances upon a small knife embedded in the banks of the Liffey. Maddie recognises what the runes on the knife's handle signify: the chance to have her own adventures in the past. Maddie only intends to travel back in time briefly, but a skirmish in 9th century Dublin results in her waking up on a ship bound for Iceland, with the man who saved her from...