LFD Level: 80 (Heroic Level: 80)
You can find The Forge of Souls dungeon within Icecrown.
The coordinates are (52.2,89.1)
Make your way to Icecrown Citadel at the bottom of map and fly up to the right side of building, the second level you should see a small entrance on the left side.
/i Slashes all players inflicting lots of physical damage. Dispel Corrupt Soul on a player. Kill all Soul Fragments before reach boss. Move in for Soulstorm. Fears a random player. Uses Shadow Bolt.
2. Devourer of Souls