Sometimes it slanted against her window with a pinging sound, which meant it was close to hail, and then it was visible as tiny pellets for a moment on the pane before the pellets vanished and rolled quietly down the glass, each drop leaving its own delicate trickle. At other times it fell straight down, hardly touching the window at all, but still there beyond the glass, like a delicate, beaded curtain at the entrance to another room.