An event of foreshadowing is when Montressor pulled out his trowel while they are walking. This is foreshadowing that he is going to be laying bricks, which should of been a sign to Fortunato that he was going to do something unusual.
The mood if this passage is a very dark and eerie. Meaning it makes you feel like something is going to happen.
This is Ironic because he knows that he is going to be daed sooner rather than later.
The symbolism is that Fortunato is wearing a clown costume. This represents he being a fool/clown for following Montressor even though he said you could turn around.
Fortunato does not know that he will be killed soon, but the reader picks up on little hints like when Montressor pulls out the trowel and when he is constantly coughing.
The author creates great imagery. The imagery that most people make or get is two grown men walking in a dark catacomb while carrying a bottle of wine.