still i playing the free version and yet when i get inside the cave at the first part (whitch i deafeated her already) but i cound't find the pool do i really need to restart the game? there is no other way to get in that pool?
I'm having this same problem actually on version 5.1. When you enter the Lich cave, it automatically starts you on the highest floor you last visited instead of Floor I, so I can't go back to try the Lich Pool event.
EDIT: You can reset the dungeon with one of the ladder escape items you get from entering it, it will always reset at 1 so you don't have to redo anything to get the Lich event to work.