"Gotcha," Sofia said. "I wasn't raised here, and I tend to feel a little too comfortable sometimes, though I'm sure that's all kinds of obvious," she said, turning the pane of glass so that one side of it dipped into the dark murkiness of the inky-cloudy stuff.

There was a magically technical name for that, but Sofia had no idea what it was called.

"Here," she said, holding out her hand to Marion. "We'll need to stick together."