Arkady tilted her head up, apparently enjoying her dry spot in the middle of the sudden downpour, but she let it go again a moment later, letting the rain sweep over her as well, it was a warm, spring rain, not like the icy cold London rain she'd been carting around for a while. Probably she had no idea that she'd even changed cities.
The ducks had scattered again at the first splash of rain, and when Arkady realized it she sighed, shaking her head and turning to step out of the pond and onto solid ground again, which was when she spotted Mary, "Oh." That was a 'hi', really.