John Carter arrives naked on Mars. Holger Carlsen arrives naked on the Carolingian Earth. But Holger is expected. His horse and equipment wait for him.
Carter arrives on a dead sea bottom whereas Holger arrives in an exaggerated Terrestrial environment. Familiar trees, oak etc, are too big and wild for modern Denmark. A hawk hovers and a bear approaches. It looks medieval - or is this the way a forest would look in an imagined, mythical world?
Holger is bigger than the twentieth century norm and medieval men were smaller but the sword that he finds exactly fits his grasp. The stage is set and the principal actor has arrived. He just does not know it yet.