Looks like I found their hideout! mwuaha TLDR : I spent 20min killin pigs. So while starting up a new character and doing the quest "A Mysterious Presence On-Board The Nauttilus", Muirhat will teleport you to a map full a pigs. Some of the pigs, when killed, will turn into a black mage disciple(which will drop a black mage token for the quest). I was feeling pretty bored and wondered if I could push all the mobs to spawn only on the top two ledges, but I then took it further. I decided to attempt and spawn only disciples in the map, but then I decided "Hey, why not spawn only disciples on the top right ledge..", and that's what ended up happening.
