The boy referred to in the title is Justin Whitney, a bright 10-year-old from New Hampshire, who learns his mom and dad are getting a divorce. Gamble and Skip are loving parents and they agree to share custody of their son. Their biggest disagreement is over their house, a stunning structure they designed themselves, which is a manifestation of their professional success. Soon Justin finds himself being shunted between two households, receiving lots of expensive (and often duplicate) presents, and getting advice from other "divorced" kids in his school. One day while watching television he sees an interview with Weld Pennyworth, a divorce lawyer also known as the "Boston Devil." He first writes to and then visits Pennyworth to ask the lawyer's help in preventing his parents' divorce. Dismissive at first, the cynical Pennyworth eventually agrees, drawn by the legal challenges of the case and also by a connection he feels with Justin. Having elements of both "Kramer vs. Kramer" and "The War of the Roses", this is an insightful, often poignant novel with strong characterizations and a very topical theme.