Hypocrisy and Appearance

Characters maintain polite facades while expressing cutting judgments, as seen in Mr. Merry's public charm versus private despair, and the dinner party's pretense of living differently than they do.

Mr. Merry publicly berates the boys for ungentlemanly behavior while himself performing a calculated, self-pitying role; his flattery of the parent contrasts sharply with his private complaints.

Mr. Merry's public scolding of the boys for untidiness contrasts with his private anxiety about the prize-giving, highlighting the gap between surface decorum and underlying chaos.

Mr. Bentley criticizes his children for self-absorption while being oblivious to his own self-centeredness and lack of empathy.

The characters maintain polite facades while concealing the truth about the books' origins and their own deceptions.