What one reviewer said about The Law and the Lady (Penguin Classics) by Wilkie Collins, David Skilton:
Many fans and critics agree that Wilkie Collins' writing talent declined after the gripping "The Moonstone," and his works in the 1870s and 80s are sometimes dismissed as misfires of once-genius mystery writer. Though part of the low estimation is reasonable (and some of the works in this era testifies to this opinion), many of them are still readable and interesting. And "The Law and the Lady" should be classified among those neglected pieces.
Probably the first full-length novel featuring female detective, the novel follows the story of heroine Valeria, who marries Eustace happily in the opening of the book. However, she discovers behind the happy marriage a terrible secret, which involved an unsolved murder case in her newly-wed husband's past, and soon she realizes that her husband is not exactly what she thought. To clear her tainted (and his) family name, Valeria single-handedly embarks on a job of amateur detective.
To fully relish the story, you have to remember several things: one of them is that the book is partly inspired by the real-life case of Madeline Smith, who, it was alleged, disposed of her lover with arsenic. Collins made use of this well-known, sensational case, changing the sex of the accused, and he deftly challenges many concepts embedded in morally strict Victorians. So, when Valeria appoints herself as a detective, her "job" (in Victorian society in which ladies are supposed not to work, with the possible exception of poorly-paid governess) starts to have another meaning. Collins, on the one hand attacking the insufficient laws of Scotland, which give its unique "Not-Proven" verdict to the accused when the jury cannot decide whether or not he/she is guilty, also challenges the morally rigid Victorian ideas about male/female concept. This is not to say Wilkie Collins is a feminist; but considering he never married (but, it is generally agreed, had two mistresses), his unique ideas about contemporary males and females are reflected in this seemingly starange work.
And as a detective novel, "The Law and The lady" has still power to entertain us. Though its beginning part is a little shaky because of implausible situations, the book gradually gets you into the thrilling adventure of Valeria, who overcomes all the barriars on her way to the truth. Though the fact that Collins' best work(s) is "The Moonstone" or "The Woman in White," this book is enjoyable. shows some version of Victorian ideas about the roles of males and females.
By the way, it is argued that the first fictional female detective (including amateur) is also created by Collins in his short story "The Diary of Anne Rodway." (1856) This short can be found in most of the collection of his short stories. But if you know another contender for the first female PI, let me know.
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