Short climax of The Cask Amontillado by Edgar Allan Poe?

The air grew thick, the dampness chilling Montresor's bones. He heard a muffled sound, a desperate cry swallowed by the stone walls. He chuckled, a dry, hollow sound. It was done. He had sealed Fortunato's fate, burying him alive within the catacombs. The final brick, a symbol of his vengeance, fell into place, silencing any remaining hope. Montresor, his heart heavy with a strange mix of triumph and dread, turned and walked away, leaving behind the echoes of his chilling deed.