"You have made a mistake, Monsieur le Duc, the account is for eight hundred dollars, and you have only given me seven."

Salabert did not seem to have heard him. With his eyes half-closed, and shifting his cigar from one corner of his mouth to the other, he sat silent, looking at the pocket-book, after fastening it with an elastic band.

"This is one hundred dollars short," Fayolle reiterated.

"What? Short? Count once more. It is impossible!"

The horse-dealer counted.

"Three thousand five hundred pesetas."

"You see, I could not be wrong."

"But the horse was to cost four thousand. That was a bargain."

The Duke's face expressed the most candid surprise.

"What! Four thousand pesetas? No, my friend, no. The horse was to be three thousand five hundred. It was on that understanding that I bought it."