I'm a lvl 35 pyromancer and i still haven't unlocked mooshu. I just can't figure out what quest unlocks mooshu. Can someone tell me who gives the quest, where they are, and quests you have to do to get that quest (If Last Option is necessary)? Or, just tell me how to unlock it if a quest doesn't unlock it. Thx.
You need to complete the main storyline quests in Maryleybone. Once you have done so, they will tell you to visit Ambrose and he will give you the key to go to Mooshu.
. I'm working on Katzenstein's Lab today so i hope i'm getting close to go into Big Ben then unlocking Mooshu.