Once you've reached the top of the mountain, you'll see a space where there is a stone in the middle. Lift the stone up and you'll see a portal. Walk into it and you're now in the next world. Make sure you have the mirror before you do this. Go back to the left and go up. Press A to activate the mirror. You'll now be on top of a ledge. Walk off the ledge and walk to your left. You'll now see a castle. That's where the third stone is located.

After you have the two first stones, yoiu must go to Zoras, Dominion or whatever it's called. then you must talk with the King...After you talk with the king, you must take the diving challenge and succeed. OPnce you have done that, you must go to the Lake, near Zora, there is a small bottle. read the letter, give it to the lost princes' father. Take the empty bottle and find a fish (This can be done by finding a boulder in the fields or mountain. Bomb the boulder, go into the hole. In a small "pond" ther will be a fish, swipe at it. then go to the area behing the King of the domain. Go up to J.J ant release the fish. he will then weat the fish and you. You must fing the stuborn princess and pass a series of puzzles and pasages, after you fight a boss dude, then you will aquire the final stone!!!!!Good luck...