Mungo Lockhart goes up to Oxford and find himself sharing a room with the Honourable Ian Cardower, who is heir to a rich title and estate. Unimpressed by rank or riches, Mungo is nonetheless wary in his exchanges with Cardower, and this is reciprocated. However, the two do become good friends and Cardower takes Mungo on visits to his parents' home, to visit the head of the family, Lord Audlearn at Bamberton Court – a stately home in the grand style – and then to Mallachie, the true family seat, where the eldest son Lord Brightmony lives in splendid isolation, save for his companion; Leonard Sedley, sometime novelist. All seems well, except for Mungo noticing the interest shown by the family in a young Scots boy of uncertain parentage. The story takes on an obvious twist with the usual suspicions and uncertainties mounting, lawyers being called in, and general acrimony, but the final crisis and confrontation is of a surprising nature and an unusual explanation unfolds. On the way, Stewart of course introduces sub-plots and high comedy in his usual literary style. The novel is thought provoking, teasing, and thoroughly entertaining and fascinatingly descriptive of the various locations; Oxford, Perugia in Italy, and Scotland