For the introduction introduced the play, bring up the meaning of betrayal and mention that Julius was betrayed. But don't explain it all there, you can go more into detail about that stuff in the following paragraphs. For the concluding paragraph you can briefly summarize what you had written, but don't bring up any new information at all.
The speaker feels as if it tragic and this is being shown the exaggeration and use of a hyperbole.
According to Montresor, revenge would not be successful if “he was punished for getting his revenge”
The tone of the story is somewhat humorous and the mood is uneasy. One of the themes of the Upturned Face is how destiny determines who dies and lives and how an individual very susceptible to death with just one blink. It is humorous because seeing two guys burying someone and at the same time fighting against someone is ridiculous.