Lou and the narrator were walking to school and then stumbled upon a lady that was painting the wall
At The Diner
blah blah blah blah blah blah paint the wall blah
Lou and the narrator both were wondering of what they saw that women and why she was painting
Talking to the Painter
The kids dad came to pick them up from school and take them to the diner where they're mo works.
The kids were eating and then they overheard somebody talking behind them it was the lady that was painting the wall
Lou and the narrator both went back to the wall and then they saw the lady and they were surprised to see her because she was almost done with painting the wall. Then they went over to the lady and asked to stop painting and explained why and then the lady stop painting washed all of the paint away and then the wall was back to the way it was supposed to be
The theme is that the kids are trying to save the wall.