Who comes by the house from the Owners' Association, who is his son and what happens when Paul's father returns home?

Mr. Costello, president of the Lake Windsor Downs Homeowners' Association, drops in for a visit just about the time Paul's dad and Erik return. Mr. Costello's son, Mike, is a member of the Lake Windsor High football team, the Lake Windsor Seagulls, and Mr. Costello goes to get Mike. The two return and the talk centers around football.