Frank, like Emma, appears to have learned how to manage his difficult elderly invalid relative pretty effectively [Chapter 26: He did not boast, but it naturally betrayed itself, that he had persuaded his aunt where his uncle could do nothing, and... he believed (excepting one or two points) he could with time persuade her to any thing....] -- but it is interesting to see that he has a great deal of trouble figuring out how to manage Emma's difficult elderly invalid relative.