The story of the Frisian Fishes
Following tips from this site, I told fairy tales with planks and fabric above the knees.
The adventure is about Fiskene Frize, (free reuse of Bukkene Bruse). The Frisian fish are on their way up the river to spawn, but have to go under a bridge. The troll lives on top of the bridge and wants to eat anyone who swims under it. All the children were very fascinated, and afterwards some of the children got to tell the story. Incredibly fun storytelling session. : )