"Guild Wars Nightfall", the third chapter in the Guild Wars saga, was released on October 27, 2006. As with the previous chapters, this is a stand-alone product, but it can be merged with the previous campaigns to enhance the gaming experience. This third chapter introduces a new world map, two new professions (the Dervish and Paragon), a new PvP mode, but its most remarkable new feature is the introduction of "Heroes" who travel with the character between missions and campaigns and are fully customizable by the player.