Hi, can i get some help please. I am at 18%. Just discovered the cave under estero key. Soul Crystal says to go find artefact in there but there is this big rock blocking the way to go further. should i find something in the small area before the big rock or should i go beyond the big rock blocking the way? i read many posts but i feel no one got this issue. Heard of a rock bomb but the game doesn't mention it so far... thanks for the help