Hey so im at the volcano boss,the dragon like mosnter,and i feel like i am not strong enought,i have a lot of these key items called Sparkling pearl and Moonstone shards.it says: dropping it into Maggie's flask will increase its capacity,but i dont know how to drop it in the flask can anyone help me.
EDIT:Ive killed the volcan bosss,but now i need to find a place for me to fight the demon master of mariam and i dont find the place
These flask upgrades a used automatically once you'll go to sleep, the place doesn't matter. It could be your home cave or an inn. They don't disappear from your inventory after their effects are active, so just go catch some sleep and this will ensure all upgrades are active.
Mariam's boss is optional. You can find him in the volcanic zone, to the right of the entrance. Getting to him will require solving a labyrinth mini-puzzle.