Well, Johnnie Green jumped down from his seat and looked at the harness.

"Dear me!" his grandmother said. "If we only had a piece of string you
could mend the harness so we could get to the miller's, at least."

Johnnie felt in all his pockets. And probably that was the first time he
had ever found himself without plenty of string. There were enough other
things in his pockets--a jackknife and nails, an apple and a lump of
maple sugar, an old broken watch and a willow whistle. But not a single
piece of string could Johnnie Green find.

Then he happened to think of the string his father had used to tie up the
sack of wheat. Johnnie stood the sack on end, tipped it against the back
of the seat, so the wheat wouldn't fall out, and unwound the string from
the mouth of the bag.

He had hardly begun to tie the harness together when Grandmother Green
screamed again.

The horse Ebenezer looked around once more, as if to say, "I wonder
what's come over the old lady."

And Johnnie Green turned his head, too.

"My goodness!" his grandmother said. "Did you see that? Something ran
right up my back and jumped off my shoulder. There it goes now!" She
pointed at a small object which was scurrying through the roadside fence.
"Why, it was a chipmunk, I do believe!" she cried. "Now, where do you
suppose he came from?"