He recognised that tone. And he remembered feeling just as Arthur must do, now. That being stuck here would only be a temporary inconvenience. That somehow, there must be a way to get home. That illusion had quickly been removed for him. "Good to meet you, Arthur. Do you mind my asking where it is you've come from?" He was admittedly intrigued by his clothes, and that he had a sword. His own was rather unique, amongst the people here.
Robin nodded to the sword at his waist, as he responded. "It may be something to do with that. I have given a few lessons with my own. It might have been decided that you could do that, if you're able. This is really the only area good for it."