He dips his head into a nod, without ceasing the music, and closes his eyes, concentrating.

Thin black ribbons of smoke drift up from the water. They skim the pond's surface like serpents, pulled from the hag by the call of Wei Wuxian's music. It is a simple trick, to lure a demon away: take some of their resentful energy, and they will follow to reclaim it as a fish follows a baited hook. Combined with Rest, she should come along without a fuss.

The smoke eels through the crowd. The onlookers part, murmuring incredulously, as it rises to wrap around Wei Wuxian's flute, joining more wisps of smoke floating from the instrument.

Dazed, the hag steps from the water.