The Cask of Amontillado

This story is about a man who is seeking revenge. He entombs this man in a underground catacomb. However, at the end it is said that he feels sick (his heart). This shows Irony because he should be happy about completing his murder. When then throws the torch in the tomb and he hears the bells jingle. He was trying to mock his victim but he doesn't get what he wants. What he thinks is going to happen doesn't and that in its self is irony.