River's head snaps sharply around, her eyes darting restlessly from pedestrian to car to shadow.

(Simon, I hear thunder)

"Be careful," she half-whispers. "Gotta hide deep."

Her fingers uncurl, and a hard candy falls out: strawberry-flavored, slightly dusty, wrapped in paper with brightly colored Chinese emblazoned across it. It bounces off the man's knee, and skitters to a stop against the cardboard sign.

Her head turns once more, deliberately this time. "I'll remember," she says to the old man, careful and grave. "Thank you."

It's only polite.

And then she's gone, hurrying on.