Dora Deane. Or, The East India Uncle

An orphan is taken in by relatives who use her as a servant, and a rich uncle is expected home from India - after which everyone's manners improve remarkably. Holmes sold something like two million books, outsold in her century by almost no American woman except Harriet Beecher Stowe; she wrote orphans, wills and just deserts, and the pleasure of the machinery is that it never once fails to deliver.