In one work by this author, the protagonist discovers that she is the daughter of the maid Sarah Leeson after inheriting the fortune of Captain Treverton.  
In one work by this author, the protagonist discovers that she is the daughter of the maid Sarah Leeson after inheriting the fortune of Captain Treverton.  In addition to that novel about Rosamond Frankland, this author wrote a novel in which Magdalen and Nora are revealed to be illegitimate children after the murder of their father Andrew Vanstone.  His other novels include one in which Percival dies in a fire while burning church records proving his illegitimacy and Laura Fairlie is married by Walter Hartright and one in which John Herncastle steals the titular Hindu diamond.  FTP, name this English novelist of The Dead Secret, No Name, The Woman in White, and The Moonstone.
In one work by this author, the protagonist discovers that she is the daughter of the maid Sarah Leeson after inheriting the fortune of Captain Treverton.  
Wilkie Collins