What happens at the climax of the story The Masque of the Red Death?

The climax of the story comes after the Red Death arrives at Prince prospero's masked ball. Prospero had locked himself and 1000 of his closest friends inside an Abbey in order to escape the disease that plagued his land. during the 6th month of quarantine, Prospero decided to throw a lavish party to celebrate having escaped the Red Death. during the party, however, prospero spies someone whom he believes to be one of his guests who had the audacity to come from the party dressed in a red death costume. He chases the figure from the room to room until they reach the black room in the western part of the hall. There, the figure turns toward Prospero and the prince falls to the floor dead (climax). He could not escape death no matter how well he tried to barricade himself from the world.