Diablo III's cheery locales. It probably crushed the interview when it applied to be a zone in the game.
Diablo III has a fetid and murky blog post today spotlighting the Blood Marsh region from the upcoming Reaper of Souls expansion. According to Blizzard, the Blood Marsh is "a massive, swampy stretch of land, split by rivers and tributaries often utilized for passage and trade." The theme of "blood," both the red substance and lineage, is integral to the zone's story.
Adventurers in the region will discover signs of an ancient civilization, battle creatures like the bogans and blood golems, and unlock the mysteries of the Ruins of Corvus.