No, I feel stupid because I already went there, went to the marsh cave, and couldn't get through a door because I needed a mystic key, so I then assumed I went the wrong way and needed to return at a later time because I didn't have the key yet. Now (because you told me to) I went back did more exploring in the cave, found the crown, gave it to the king, beat the evil elf king, and used the crystal eye to get the potion, and then woke up the prince to get the key. *gasps for breath*

To sum all of the crap up, I felt stupid because I assumed I needed the reward for beating that part, to beat that part.

So far I find the game pretty fun, you have to remember the things people tell you so you know where to go next, which can either make you very lost or make it so you zoom right through.
Right now I'm at the Earth Cavern, and I just beat the Vampire, now I wonder am I suppose to leave or find a way through that panel?