"Well, I'm glad to know you like to be kind," said Mother Brown. "But please don't run away and ride in any more grocery wagons, or something may happen so that you can't go on a visit to Aunt Lu's city home."
"Oh dear!" cried Sue. "We wouldn't want that to happen! Are we soon going, Mother?"
"Pretty soon, I guess. I have some sewing to do first. I must make you some new dresses."
The next week was a busy one in the Brown house. There were clothes to get ready for Bunny and Sue, and as they had just come back from a long visit to grandpa's, in the country, some of their things needed much mending. For Bunny and Sue had played in the hay; they had romped around in the barn, and had run through the woods, and across the fields.
But the summer vacation had done them good. They were strong and healthy, and as brown as little Indian children. They could play all day long, come in, go to bed, and get up early the next morning, ready for more good times.
One day the postman brought another letter from Aunt Lu.
"I can hardly wait for Bunny and Sue to come to see me," said Aunt Lu. "I am sure they will have a fine time in the city, though it is different from the seashore where they live. Bunny will not find any lobster claws here. And my home isn't in the country, either. There are no green fields to play in, though we can go to Central Park, or the Bronx Zoo."
"What's a Zoo?" asked Bunny. "Is it something good to eat?"
"It's a game, like tag," guessed Sue.
"No," said Mother Brown. "Aunt Lu means the Bronx Zoölogical Park, and she calls it Zoo for short. That means a place where animals are kept."