The comes when Montresor walls Fortunato up in a niche in the wall of the catacombs. Fortunato's drunkeness is beginning to wear off, and he realizes Montresor's intent
Fortunato stops screaming, and Montresor only hears the jingling of the bells on his costume when he throws his torch into the catacombs. Montresor also is finishing sealing the wall he is making in front of Fortunato, so one finds him.
The resolution of the story is when Fortunato is left to “Rest in Peace”