This is the story which a dear old lady, my very good friend, spoke of as "a medicated novel," and quite properly refused to read.  I was always pleased with her discriminating criticism.  It is a medicated novel, and if she wished to read for mere amusement and helpful recreation there was no need of troubling herself with a story written with a different end in view.

This story has called forth so many curious inquiries that it seems worth while to answer the more important questions which have occurred to its readers.

In the first place, it is not based on any well-ascertained physiological fact.  There are old fables about patients who have barked like dogs or crowed like cocks, after being bitten or wounded by those animals.  There is nothing impossible in the idea that Romulus and Remus may have imbibed wolfish traits of character from the wet nurse the legend assigned them, but the legend is not sound history, and the supposition is nothing more than a speculative fancy.  Still, there is a limbo of curious evidence bearing on the subject of pre-natal influences sufficient to form the starting-point of an imaginative composition. 

The real aim, of the story was to test the doctrine of "original sin" and human responsibility for the disordered volition coming under that technical denomination.  Was Elsie Venner, poisoned by the venom of a crotalus before she was born, morally responsible for the "volitional" aberrations, which translated into acts become what is known as sin, and, it may be, what is punished as crime?  If, on presentation of the evidence, she becomes by the verdict of the human conscience a proper object of divine pity and not of divine wrath, as a subject of moral poisoning, wherein lies the difference between her position at the bar of judgment, human or divine, and that of the unfortunate victim who received a moral poison from a remote ancestor before he drew his first breath?...