This is a ripping two-step." The music, too, was urgent--and persuasive.

As if without volition she fell into gliding little steps, moving toward the dancing floor.
It was Katie who watched that time.

She wanted to see Ann dancing.

At first it puzzled her; she was too graceful not to dance well, but she danced as if differently trained, as if unaccustomed to their way of dancing.

But as the two-step progressed she fell into the swing of it and seemed no different from the rest of the pretty, happy girls all about her.
She was radiant when she came back to them.