lefayart:

“For Arthur to find out about Merlin’s magic, I think, again, it has to happen in a way that suggests that Arthur can think for himself. And I think, by accident, and without Merlin knowing, I think Arthur has to witness something or just have something click. So that he knows before Merlin knows that he knows. So that there’s a time period where Arthur has to decide what to do.”

— Bradley James, proving once again that they should’ve just let him write the show.