some random person from JC that had full gear told me. After the first boss you go right at the T and go and kill the scorpion boss. Right after the scorpion boss is a statue totem. You kill that totem, then go back to the T and you take the left route which will take you to the red horse/devil thing? When you kill the statue totem after him an obelisk will spawn and then a timer will start. You have to kill the crab, and then kill the statue totem right after the crab before that timer reaches zero. Then a 'hidden chamber' door will open and you get to go to a new area with 8 mobs that hit really hard. You kill them and any totems, and then it takes you to the lancer and you just finish the rest of the dungeon like you would normally. For BT they say you gotta clear left and right garden. After you finish one of the garden bosses just take the teleportal mirror behind them that will tp you to the other side. But supposedly doing that in BT only increase the drop rate by like 20%.