The Marauders' Map Evolution

The Marauders' Map wasn't created in one night - it evolved over years. It started as a simple tracking charm between the four friends, then grew to include the castle's basic layout. The final piece, the ability to see everyone's movements, came from a combination of Peter's observation skills and James's understanding of human behavior patterns. The map became a living document, updated with every new secret passage and hidden room they discovered.