Black Dominion Dungeon

Portal picture from Event Pictures

Now located at:88.7 s x 25.9 w

Upgrade your Singularity weapon:

Virindi Castaway tells you, "Whyyyyy? My Master has not come to see me in so long. Prepare the Black Dominion for my return, he said. They say he is gone. Lies. Please. He would want me to help you. Yesss. Give me your pretty Singularity weapon. He would want me to bind it to your soul. I will. Yesss. Master will be so pleased. Why won't he visit me? Please."

Virindi Castaway is in last room.
Pretty easy layout just keep heading down.

Observers, execs, tereborous hollows, altered drudges, and wisps along the way. A few spots with 20+ creatures spawned around you.