Mrs. Pollifax, Innocent Tourist, by Dorothy Gilman (NY: Fawcett, 1997)
The next morning, I was in the house with the front door open and the screen door latched. I heard someone walking up on the front porch. It was a woman and her son. The mother was making the boy come by our house to apologize for his part in the vandalism of the Little Free Library. She was one upset mother! It seems a group of boys were spending the night together and had sneaked out.