My dumb 2 Am brain and magic obsessed brain though of:
Older less terrified merlin moving to Camelot and using runes like protect and / or warding runes that look kinda like a letter or word from another language and hangs it on a board on his door so he feels safe and the knights and arther/his friends seeing it not knowing it's magic but thinking it's cool and making them to go on their doors and inadvertently learning small amount of magic from him. 10/10.













