Book excerpt: A bundle of passionate but unclaimed love letters written a century ago and found in a London bank vault have led to the uncovering of an extraordinary story. Research has revealed the adventures of a spirited young woman who by the standards of the time, or perhaps any time, behaved scandalously. Yet she managed to avoid disgrace, get her man, and go on to lead a respectable life. At first sight Ellen Nelsen's behaviour appears shocking. Among other misdeeds she appears to have been bigamously married twice. Given her circumstances, however, her survival is a triumph of fortitude over betrayal.