“Camelot is so big, now,” he continued, “and Caerleon is growing as well. Even with the tension between us and them, a certain number of people still move back and forth. It’s not like there are rules about it.” He gave me a sideways glance and a knowing grin. I pantomimed silent laughter at him. Archimedes and I had talked about many things over the decades. I think he now understood that I wasn’t some kind of supernatural being, just someone with more knowledge than him.

