I haven't reached that part of the game yet, but need to know a bit more about you problem, it is hard because of the fights, is there something you can solve or are you not able to do anything in that specific place since nothing appears to you?
If the last option is your problem, I suggest you to click (or tap) anywhere in the screen and maybe something will appear for you (it happened one in one of those earlier dungeons), hope it helps!