Prickly Porky in "Old Granny Fox Loses Her Dignity"

There, rolling down the hill straight towards her, was the very thing Reddy had told her about.
At first Granny decided to stay right where she was and find out what this thing was, but the nearer it got, the stranger and more terrible it seemed. It was just a great ball all covered with dried leaves, and yet somehow Granny felt sure that it was alive, although she could see no head or tail or legs. The nearer it got, the stranger and more terrible it seemed. Then Granny forgot her dignity. Yes, Sir, she forgot her dignity. In fact, she quite lost it altogether. Granny Fox ran just as Reddy had run!