Montresor coincidentally runs into Fortunato at the carnival and then ask him if he would like to share a bottle of Amontillado wine with him. Nonetheless the bottle is not with him, but at the catacombs.
I got you now
Montresor Claims that Fortunato has greatly insulted him. Monteresor then seeks revenge for this as he lures fortunato in to the catacombs where his plan is to execute him.
Montresor keeps asking if he feels good to continue the journey , since he is continually coughing. But Fortuanto insists that it is nothing
When reaching the vault Fortunto sees there is no Amontillado wine, but just a huge hole in the wall. Montresor shackles Fortunato and then finds the brick to seal the wall.
As Montresor is almost done sealing the last of the wall, Fortunato screams to stop. At this point its too late to stop and seeks his revenge he has planned.