The boy scrubbed a rock near the brook. He listened as the squirrels sprung from trees onto brittle leaves which lay lifeless until a quick breeze, or a energetic squirrel, shuffles them. He noticed how the racket made from the busy squirrels might sound like a large animal and how it was hard to know the difference unless you spent much time in the woods, or if you saw with your eyes what you were hearing. The rock looked smooth and glossy while it was wet, but as soon as it dried it looked rough. Again he dipped his shirt sleeve into the brook and began scrubbing. -How much more clean do you need it to be? Asked the mind of a thought.