As RidingBean pointed out with that link, I made a map for the zone plus an map pack that swaps out the default map for my map in game.
I color coded the cells and doors they open. By looking at the map if you want to fight the final boss (Shaula), you need to collect the blue cells on the map and open the blue doors first. Then collect the green cells on the map and go to the purple/green switch and open the green doors.
Then collect the purple cells on the map and go back to the purple/green switch and open the purple doors. Then you collect the red cells on the map and then go fight Shaula.
When I did my Shaula fight I collect all the cells, all the chests, killed every single mob in the zone and fought Shaula with 7 min left on the clock. Defeated her with 4 mins left on the clock.
We got the main chest and 3 other blue chests.