What happened to Fortunato at the end of the story?

As a scholar in the field of literature, I have a deep appreciation for the works of Edgar Allan Poe, whose stories often delve into the macabre and the psychological. One of his most famous short stories, "The Cask of Amontillado," is a tale of revenge and betrayal that takes place in a time of carnival. The story is told from the perspective of the narrator, Montresor, who meticulously plans and executes a diabolical act of vengeance against Fortunato, a man he claims to have been wronged by. The narrative unfolds through a series of events that lead to a chilling and unforgettable conclusion.
At the end of the story, Fortunato meets a tragic fate. After being lured into the catacombs under the guise of a wine-tasting, Fortunato is deceived by Montresor, who leads him deeper into the labyrinthine tunnels. The unsuspecting Fortunato, who is a wine connoisseur and initially excited by the prospect of sampling a rare Amontillado, is unaware of the sinister intentions of his companion. As they descend further into the catacombs, Montresor begins to masquerade his true intentions behind the pretense of seeking a suitable environment to enjoy their drink.
Upon reaching a particular spot, Montresor convinces Fortunato to don a mason's costume, claiming it is part of an elaborate jest. Fortunato, in his drunken state, complies, and it is at this moment that Montresor's true plan is revealed. Montresor quickly chains Fortunato to a wall, effectively immobilizing him. Fortunato, initially amused and believing it to be a part of the carnival's merriment, soon realizes the gravity of his situation when Montresor begins to construct a brick wall, sealing him inside a niche.
As Montresor lays each brick with calculated precision, Fortunato's pleas for mercy and his desperate attempts to reason with his captor fall on deaf ears. Montresor is unyielding, driven by a desire for retribution that he believes is justified. The story concludes with the horrifying image of Fortunato entombed alive, his final moments marked by the chilling laughter of Montresor, who has successfully completed his vengeful act.
The story is a masterful exploration of themes such as revenge, the nature of guilt, and the psychological complexity of the human mind. It serves as a cautionary tale about the dangers of pride and the consequences of underestimating one's enemies. The ending of "The Cask of Amontillado" is a testament to Poe's skill in crafting a narrative that leaves a lasting impression on the reader, long after the final sentence has been read.

Fortunato eagerly follows only to be chained to a niche in the wall where he watches as Montresor builds a brick wall to enclose him inside where he will be left to die with no hope of survival or rescue.