| Arachnid Quarter | Plague Quarter | Military Quarter | Construct Quarter | Frostwyrm Lair |
A wing of strange fungus, ghouls, gargoyles, maggots and other plagued monstrosities. Three bosses. This wing is only very slightly more difficult than the Arachnid quarter, with Noth the Plaguebringer being arguably the easiest boss in the instance. The trash clear to Noth the Plaguebringer and Heigan the Unclean is medium length, with Loatheb having a short gauntlet of quickly respawning maggots and eye stalks rather than a trash clear.