Blizzard Entertainment revealed three new Heroics based on the classic Scarlet Monastery and Scholomance dungeons will be available in the upcoming World of Warcraft: Mists of Pandaria expansion.

Each dungeon has new bosses, and a new story to tackle at level 90. This video shows a few glimpses of locations and bosses within these dungeons. The music theme seems to suggest these new dungeons are pretty tough.