To the lands beyond the Rhine
Many of the better traveled, older, wiser elves have been to the diverse, crowded, and busy cities of the world, and they have seen things like this.
But those Elves do not get stuck on midnight road patrol.
This Elf looks baffled. Especially when Og lets loose. If a dragon had landed in front of him and started doing card tricks, he would have the same reaction. The magic he is used to does not involve bright pink smoke, ever.
For a moment, he takes a defensive posture, and then relaxes.
"You are... entertainment?" he asks, trying to recall anything about this. "You are here... I do not know if you are supposed to be here."
He sounds hesitant and uncertain. He does what comes naturally: kicks the problem up the chain of command.
"I am Alio, of the Black Forest," the Elf says, finally deciding what he should do. "You are not enemy, but you cannot travel freely on our land without the permission of the Elders. You must camp at the Aquae Villae, but go no further. It is.. a human place, it would be good for you. I must report your presence. Follow me up the path. I have no magic of light for you but... you have come so far without it."
Aquae Villae is not far, but the going in the darkness is very far. It comes into sight soon, through a gap in the trees. Nestled in a narrow valley, strangely alone, uncrowded by other buildings pressed against it (which would surely be the case in a Human town) the see the cream colored stone walls in the moonlight. It is a great bath house built of carved stone. A curved, vaulted roof rises against the forest backdrop.
Most of the characters would be at least slightly familiar with these. Once, they were one of the major features of the Empire. Beautiful places, and when they were fed with underground springs, often with magical or spiritual powers (everyone knows underground springs carry the magic of the Earth!).
Alio explains that the Elves have recently expanded their land here, and so are the new owners of this place, but they are not quite sure about it yet. Stone walls, however beautifully crafted, are strange to the Black Forest Elves.