But by good luck she saw a woman standing near, and suspended by a strap round her neck was a tray of post-cards.

Calling the woman to her, Patty made known her desire for a picture of the Grand Conde.

“Oui, oui,” exclaimed the woman as she offered various portraits of other members of the Conde family.

“Non, non,” cried Patty, shaking her head, vigorously, “le Grand Prince,-le Grand Conde!”

At length the woman discovered the proper card, and when Patty accepted it, and paid her for it, she burst into voluble thanks and begged her to buy more.

Remembering Elise’s album, Patty bought another copy of the same picture for that, and then, thinking she would like to take one to Marian, she asked for a third copy.

This the woman did not have in stock, but anxious to please her pretty young patron, she flew over to another post-card vender, of which there seemed to be several near by, and demanded the required card from her.  But a search through her stock proved unavailing, and both women, chatting volubly in French, tried to procure one from a third post-card seller.

Patty and Elise became much amused at the excitement they had created, and suddenly to their surprise one of the tourists expressed her desire also for a portrait of the Grand Conde.

Patty surmised at once that she had no particular reason for desiring it save an idea that if it was in such great demand it must be of a special value.

And then following the example of the first, several other tourists set up a clamour for the same picture, and the scene became one of great excitement.  The post-card venders put their heads together, and still jabbering rapidly, produced all sorts of portraits which they endeavoured to foist upon the buyers as portraits of the Grand Prince.  But the tourists were shrewd, and they knew what they wanted, though they had no idea why they wanted it.

The natural result of this situation was a rise in price of the desired picture.  The original price of ten CENTIMES was doubled and then quadrupled, and finally the tourists began to bid for the picture until the affair became an auction.

Patty and Elise were convulsed with laughter at the absurdity of it all, and finally the motor man whizzed away, leaving the Frenchwomen chuckling over their marvelous sales, and carrying some excited tourists, who wondered why they had paid so much for ordinary post-cards.

Patty’s recital of the affair at dinner that night greatly amused the Farringtons, and Mr. Farrington declared that the whole scene was typical of human nature.

“As you had cornered the market, Patty,” he said, “why didn’t you sell your Conde pictures at top prices, or else put them up at auction?”

“For the very good reason that I wanted them myself,” replied Patty, “and if I had sold them, perhaps I never could get any more.”

“Well, we, too, have achieved an important success to-day,” went on Mr. Farrington; “we have secured a foothold in this somewhat uncertain city, and we shall soon have a roof over our heads that we can call our own, for a time, at least.”