Over the next week, ARC translated the runes into coherent patterns. They revealed something shocking:
Godric Gryffindor, Helga Hufflepuff, Rowena Ravenclaw, and Salazar Slytherin didn't just build Hogwarts—they coded it.
Using a proto-magical language, they embedded secrets and spells directly into the castle's structure.
Some rooms were not just physical but procedural enchantments—created only when a certain thought pattern aligned with the original code.
"We can rewrite them. Access the root functions. Modify the castle itself."
"Could I… program a new room?" Harry asked one night.
"Affirmative. With sufficient magical energy and intent."
He did.
He created a room to store everything ARC knew—a floating library of spell data, tactical simulations, and dueling scenarios. It became his sanctuary.