Hi guys, here is a map of the Toto-Rak dungeon, and how to access to each section. I tought it could be usefull for anyone looking to reach the north boss, which has better drop but is harder to find and kill.

Map

Be carefull, open the portal in the given orders, and don't pass accross the cross before you open the first portal, or you'll be stuck and won't be able to do anything except the boss B.

If the map isn't enought to understand what to do, I'll take time to write steps here.

Hope it helps.