Dark Woods Hidden Doorway:
Once in the Dark Woods you will come to a screen that contains fossilized snails (They look like stone snails).
First Click on one of the snails. It will crack open, and a live snail will come out.
It will eat the pink and purple flower and then crawl out of the screen.
Next Click on the flower stem. This will cause the flower to re-grow.
Next Click on the other snail. It will do the same thing. Afterwards a door will open up.
Walk through the hidden doorway.