A snarling dog dripping white sylva approaches you in an instant way, as you see it's mad eyes looking for blood and to feast. This happens in the book To Kill a Mockingbird; Using the dog Harper Lee uses this scene to tell us the theme. In chapter 10 and 11 of To Kill a Mockingbird, Harper Lee uses the plot of a lunatic dog and the caring of Mrs. Dubose and the death of Mrs. Dubose to reveal the theme of niceness will prevail and racism is bad for a community.
In Chapter 10 Scout and Jem face the lunatic dog with rabies and Atticus tries to protect them both. “Don’t get near that dog, you understood? ‘Don’t go near him, he's just as dangerous dead as alive”(128). Atticus says this so that he can protect Scout and Jem from the dog as well
