At St Oswald's, an old and long-established boys' grammar school in the north of England, a new year has just begun. For the staff and boys of the school, a wind of unwelcome change is blowing. Suits, paperwork and Information Technology rule the world; and Roy Straitley, Latin master, eccentric, and veteran of St Oswald's, is finally — reluctantly — contemplating retirement. But beneath the little rivalries, petty disputes and everyday crises of the school, a darker undercurrent stirs. And a bitter grudge, hidden and carefully nurtured for thirteen years, is about to erupt.