Daren, you can watch us dance." Swann did as he was bidden, and as a loud, violent discordance blared out of the machine he threw away his cigarette, and turned to Helen.
She seemed to leap at him.

She had a pantherish grace.

Swann drew her closely to him, with his arm all the way round her, while her arm encircled his neck.

They began a fast swaying walk, in which Swann appeared to be forcing the girl over backwards.

They swayed, and turned, and glided; they made strange abrupt movements in accordance with the jerky tune; they halted at the end of a walk to make little steps forward and back; then they began to bounce and sway together in a motion that Lane instantly recognized as a toddle.