The story of The Changeling is told by Angelet's daughter, Rebecca, who was born in Benedict Lansdon's house in an Australian gold-mining township. Before Rebecca was born, her father had died saving another man's life. She had always looked up to him as a great hero and when she heard that her mother was to marry Benedict Lansdon, she was deeply shocked.
The prolific British author of historical romances (The Pool of St. Branok) continues her lavishly entwined narrative of the families connected to Benedict Lansdon, now a recently bereaved widower, absentee father and wealthy seeker of a Parliament seat. Narrated by Benedict's aggrieved stepdaughter, Rebecca, this complex tale of love and betrayal concerns a three-cornered sibling relationship involving Rebecca, her half-sister, Belinda and Lucie, a country waif informally adopted by Benedict. Aware that her father blames her for her mother's death in childbirth, Belinda takes refuge in michievous behavior. Placid Lucie, however, fits in well with the family, though her lineage is suspect and clouded with mysterious events at St. Branok's pool. Although Belinda seems the most obvious "changeling," Carr sustains an air of doubt and intrigue. The ambience of the Cornish countryside and of Victorian London permeate this piquantly Gothic family saga.