after you defeat scar and tank you can leave bareshade and explore a new forest area, at that area spam explore until you come across a bridge a troll guards it and has a toll for you to cross which the prices are for permanent passage or one passage you also can pay with your body to go across but your mouth/pussy/ass needs experienced to be able to use them as payment, then after that you find the river and exploring you find a cave with glowshrooms that you take to the priestess in the lizard temple or witch in the swamps to get a glowing amulet so you can enter the northcrest caves.