"They are cunning little creatures," added the gentleman, bending down and looking into the grand parade, where the mice were now feeding on canary seed.

They had become somewhat accustomed to the crowd, and, as if conscious that they were for sale, put the best foot forward.

"What's the price of them?" asked the gentleman.

"Six dollars for the mice and house," replied Leo; but the words almost choked him.

"Six dollars!" exclaimed the questioner, edging off. "That's a very modest price, young man."

"The mice bring fifty cents a pair, and there's a great deal of work in the house, besides the stock."

"But you don't expect any one to give you six dollars for a trap like that, with half a dozen rats in it—do you?"

"I think it is worth that, sir. Do you wish to buy it?"

"I thought it would amuse my children; but I can't think of giving anything like six dollars for it," added the gentleman, shaking his head.

"What would you be willing to give for it?"