Fortunato insults Montresor for the last time and Montresor wants revenge.
During the carnival in Italy, Montresor runs into Fortunato and offers to share a nice bottle of wine. However, this bottle is in his catacombs. It is late at night and Fortunato seems ill.
Fortunato and Montresor went back to the wine cellar. When Fortunato starts coughing a lot, Montresor tells him to drink the alcohol because the alcohol is supposed to help with the cough. He was actually trying to get Fortunato even more drunk.