Il druido di Shannara

The prophecy feels like a driving force for the characters' actions, but I wonder if it was planned from the start or developed later to add tension.

The world feels so detailed, but I found myself mixing up some of the groups. Was this complexity intentional to reflect the chaos of war?

The world-building is so vivid and immersive—I'd love to know whether the author drew from existing mythology or created it all from scratch.