In "The Masque of the Red Death," how does the masked ball end?

When Prince Prospero encounters the horrible, blood-stained figure among his guests, he is enraged and determined to unmask the stranger. None of the bystanders, however, acted to seize the figure who moved with "solemn and measured step" through the various rooms of the Prince's abbey. The Prince chases after him, brandishing a dagger. When the figure arrives in the last room, he turns suddenly to confront the Prince. The Prince cries out, the dagger falls to the floor, and then the Prince himself falls dead. The guests rush in, attack the masked figure, and find to their horror that there is no person under the costume. The guests then fall dead, one by one, "each in the despairing posture of his fall."