The Question and Answer section for Arms and the Man is a great resource to ask questions, find answers, and discuss the novel.
The presence of the Serbian's revolver evokes fear in Raina, but it is unloaded, thus, not dangerous. I'm not sure what you mean about the "truth" about the revolver? Please add details.
The many themes illustrated in the play are universal. For a detailed look at each, check out Gradesaver's theme page in the study guide for this unit.
What act are you referring to?