"But I'm going to drive after a while? when I learn how," declared Rose, and they said she might.

Zip gave Russ, Rose and Vi as nice a ride as he had given the two boys, and the girls clapped their hands in glee and laughed joyously as they rattled along over the paths.

Then came the turn of Margy and Mun Bun, and they liked it more than any one, I guess, and didn't want to get out of the cart.

"But Zip is tired now," said Mrs. Bunker. "See how fast he is breathing, and how his tongue hangs out of his mouth," for the dog had been pulling the cart for over an hour. "Get out, Mun and Margy, and you may have another ride after Zip rests."

The little children loved the dog, and wanted to be kind to him; so, when their mother told them this, they got out of the cart, and Zip was unharnessed and given some cold water to drink and a nice bone on which to gnaw.

"If he was a horse he could have oats," said Russ. "But I guess he likes a bone better."

"I guess so, too," said Grandma Bell, and she smiled.

With the dog-cart, taking rowing trips on the lake now and then, going fishing, hunting for berries and walking in the woods, the six little Bunkers at Grandma Bell's had a fine time that early summer. There seemed to be something new to do every day, or, if there wasn't, Russ or Laddie made it.

"And I've thought up a new riddle," said the smaller boy one day.

"What's it about?" asked Russ.