Also known as the Monouga Laboratory. The beginning of the dungeon is an open pit in the Direlands south of Fort Tethana. To enter any of the level restricted Laboratory, you must speak to Corporal Liao Chen in Cragstone at 25.6N 49.4E. He will give you an attunement gem to give to one of the three bells near the start (ID for level req), ringing the bell after giving the gem summons a brief portal at the bottom (each of the three wings has a level segmented portal). The Drudge Caretaker spawns intermittently near the end of each wing.