Who is sitting on the porch when Cal and the kids come home?

In chapter 12, Atticus leaves town and Calpurnia takes Jem and Scout to Sunday service at First Purchase African M.E. Church. Both Jem and Scout gain valuable insight into Maycomb's black community during their visit and enjoy their time at First Purchase African M.E. Church. When the children return home at the end of chapter 12, Jem tells Scout to look on their porch as they approach the house. Scout then notices that Aunt Alexandra is sitting on the rocking chair on their front porch waiting for them to come home. At the beginning of chapter 13, Aunt Alexandra tells the children that she will be staying with them for a while, because she feels that Scout is in need of a feminine influence. Scout is not happy with this arrangement and goes out of her way to avoid her rather strict, insensitive aunt who wishes to make Scout behave like a typical Southern Belle.