“Like a yeller dimond,” gasped Rags, between agony and ecstasy.

The Taxi-Man closed an eye and said, “More like the bottom of a pewter tankard seen through Four-Ale.”

“Or a new penny,” said Jeremy.

“Like the very best thing a penny can buy,” cried Ginger, “like a penny balloon. Oh, don’t I wish I could buy the moon for a penny!”

“Why not, child?” said the Balloon Woman, coming round the corner.

The Balloon Woman was very large and round, but she was equally buoyant. Her roundnesses seemed less due to fat than air. Her puffed cheeks looked as though you might buy them for a penny apiece, if red was the colour you wanted. This was the first time Gypsy and Ginger had met her, but the others seemed to know her well. Just now she had only a few balloons tied to her apron-string, and under her arm she carried a great bowl of water which she had dipped out of the nearest fountain.

Setting it down she repeated, “Why shouldn’t you buy the moon for a penny, child? Anything can be bought for a penny, God bless me. Ask Jeremy.

“Quite true, Mrs. Green,” said Jeremy. “A penny, as all children know, is the most complete form of wealth there is. There is no need it cannot compass and satisfy.”

“But you have first to get your penny,” said the Pavement Artist, “which often doesn’t happen once in twenty-four hours. And when you’ve got it, your difficulties have merely begun. You might not only know what penn’orth you want, but where it is to be got, and how to get there. You might decide to spend it on a peacock’s feather, which can very likely be bought for a penny in Peru. But of what use is that to you in Pimlico?”