In this session, I mostly ran the entirety of the Sightless Pit–not only the original very large main dungeon, but also the new vault added by the AE content, where you can find the artifacts Sunder and Wraithguard!

Neat artifacts, very tasty enchantments, possibly worth getting for heavy-armor-oriented melee characters. One problem though: the big clanky extra-tough centurion guarding them.