"Now pull us, Towser!" Bunny cried.

"Is his name Towser?" Sue wanted to know.

"Well, we'll call him that until we can think of a better name. Go on, pull!" ordered Bunny.

But the dog only barked and stood still. He did not seem to mind being "hitched up." It seemed as though he had often had children play with him.

"Oh, I know how to make him pull us!" Sue exclaimed.

"How?"

"Throw a stick in the water, and he'll chase after it."

"Fine!" cried Bunny, and he tossed a chip out into the river. With a bark the dog rushed after it. But I think you can guess what happened. Instead of the dog's pulling the boat, the string broke, and, of course, that was the end of the harness.

"Oh, dear!" exclaimed Sue. "We'll never get home, Bunny!"

The little boy did not know what to do next. But, all at once, as he and his sister looked at each other, quite worried and anxious, they heard a voice shouting: