and this was the
day they were to have it.

Not far from where the animals were kept in the park were some ponies
and donkeys. Children could ride on their backs, or sit in a little
cart, and have a pony or donkey pull them.

"We'll get in a cart," said Bunny. "I'm going to drive."

"Do you know how?" asked the man, as he lifted Bunny and Sue in. Wopsie
got in herself.

"I can drive our dog Splash, when he's hitched up to our express wagon,"
said Bunny. "I guess I can drive the pony. He isn't much bigger than
Splash." This was so, as the pony was a little one.

So Bunny took hold of the lines, but the man who owned the pony carts
sent a boy to walk along beside the little horse that was pulling Bunny,
Sue and Wopsie.

"Giddap!" cried Bunny to the pony. "Go faster!" For the pony was only
walking. Just then a dog ran out of the bushes along the park drive, and
barked at the pony's heels. Before the boy, whom the man had sent out to
take charge of the pony, could stop him, the little horse jumped
forward, and the next minute began trotting down the drive very fast,
pulling after him the cart, with Bunny, Sue and Wopsie in it.

CHAPTER XXIII

OLD AUNT SALLIE

"Bunny! Bunny! Isn't this fun?" cried Sue, as she looked across at her
brother in the other seat of the pony cart. "Don't you like it?"

"Yes, I do," Bunny answered, as he pulled on the reins. "Do you,
Wopsie?"

The colored girl looked around without speaking. She looked on the
ground, as though she would like to jump out of the pony cart. But she
did not. The little horse was going faster than ever.

"Don't you like it, Wopsie?" asked Sue. "It's fun! This pony goes faster
than our dog Splash, and Splash couldn't pull such a nice, big cart as
this; could he, Bunny?"

"No, I guess not," Bunny answered. He did not turn around to look at Sue
as he spoke.

For, to tell the truth, Bunny was a little bit worried. The dog that
had jumped out of the bushes, to bark at the pony's heels, was still
running along behind the pony cart, barking and snapping. And, though
Bunny and Sue did not mind their dog Splash's barking, when he pulled
them, this dog was a strange one.

Then, too, the boy, who had started out with the pony cart, was running
along after it crying:

"Stop! Stop! Wait a minute. Somebody stop that pony!"

But there was no one ahead of Bunny, Sue and Wopsie on the Park drive
just then, and no one to stop the pony, which was kicking up h