Mona is
William’s younger sister and is the daughter of
Elsbeth and
Bill Beaumont. Mona is an unattractive and unfortunate young woman who is bossed around and mistreated by Elsbeth and ignored by everyone else. Despite this, Mona is highly sexual, and she masturbates every night before she goes to sleep. Mona is eventually married off to
Lesley Muncan, whom
Gertrude (William’s wife) hires to teach Mona
dressage. Lesley is a fraud, however—he is not a wealthy horse master from Europe like he claims, but a poor servant. It is heavily implied that Lesley is gay, but he is forced to marry Mona after a misunderstanding which leads people to believe that he and Mona have had sex. Lesley and Mona stay good friends despite this, and they have a pleasant, platonic marriage. Mona destroys Dungatar’s reputation with its neighboring towns when, during the Dungatar theater production of
Macbeth, Mona masturbates on stage and shocks the audience.