OK, I have read the posts, but... I found a potion in the forest. Used it on the stump to create one that I used to jump over the rocks. Came to the river, but no more potion. Found nothing around the river. Re-crossed the rocks and went back into the dark following the sign pointing to a potion. Went thru 4 dark areas until I reached one with no exit. Found the 4 tall mushrooms and exploded them. Nothing else to explode and still no potion.
There is also a floating box near the rock wall. What can I do with that?
Also have forgotten how to use the picture of the owl that appears sometimes on the right of the screen. Can you help with any of this?