Even the clearest and most perfect circumstantial evidence is likely to be at fault, after all, and therefore ought to be received with great caution. Take the case of any pencil, sharpened by any woman: if you have witnesses, you will find she did it with a knife; but if you take simply the aspect of the pencil, you will say she did it with her teeth.- Pudd’nead Wilson’s Calendar. Mark Twain wrote with the thought of it being a detective/ mystery novel. Twain spent a lot of time studying law, so he could write this book. In A Whisper to ....