i had the orbs that was not the problem there is this kinda lika a boss fight behind the passage but i cant beat him i sold a lot off my inventory to buy new armor and tried to fight for several times but at some point there is an attack which kills both of my charakters one hit. i dont know how much HP the boss has or am i doing something wrong ?
I would recommend exploring and finding new items to help you. If you havent explored Floater's Forest or The Seal of Flesh, there are lots of good things there. Brushing up on your elemental types would help too. The mini boss will use a mix of Water and Inflation damage. If you are waterlogged and she uses the inflation/wind moves, it will hurt a lot!