steps backward, twinkle each way--"

"Five shillings on Twinkle, please," I interrupted.

Margery stopped and looked at me.

"You keep quiet, Alan," shouted Cecilia, cheerfully banging the piano.

"I shall never learn," said John miserably from the middle of the
room, "not in a thousand years."

"Yes, you will," encouraged Margery. "Just listen. _Chassée_ to the
right, _chassée_ to the left, two steps forward, two steps back,
twinkle each way--"

"Take away the number you first thought of," I suggested, "and the
answer's the Louisiana Glide."

"To finish up," said Margery, "we grasp each other firmly, prance
round, two bars...."

"That sounds a bit better," said John.

" ... then waltz four bars," continued Margery, "and that's all. Come
on, now."

They came on....

"Good," said Margery as they finished up; "he's doing it splendidly,
Cecilia."