Upon entering Hyrule Castle through the main entrance, go through the door at the left side. Then go up the stairs and out the door to the outside roof of the castle. Go right a little bit to find some kind of magical barrier protecting the door. Your mighty new Master Sword can get rid of this thing in a single blow. Let's proceed...
Take note that a beam of energy comes out of your sword when you have full hearts. That's why it's especially useful to have full life and a constant storage of fairies in your bottles.
Go straight through the first room. In the next room, defeat the two guards to open the doors, then continue. Now defeat the two guards to make a chest appear. Open it for a small key, then use it to open the locked door and go on to the third floor.
I hate dark places. Go through this room through the door at the left. The next room is a maze. You should light the torches with your lamp to get a better view of things. Look around for the chest with the small key, then use it to get through the locked door at the
Still dark. Defeat these two guards (if you want). It's help ful to stun
one of them with the boomerang so you'll be free to fight the other one.
Get through the next room, careful not to fall into the pit. Kill the guards in the next room to find a small key, then use it on the locked door to go upstairs to the fifth floor.
Light at last...how refreshing! Defeat everyone in this room to open up the doors, then continue. Repeat the process for the next room. The guard in the center of the next room holds a small key. Defeat him to get it, then use it to proceed to the next room. You can just ignore all
three guards here and go upstairs to the sixth floor.
Move aside the statue and go ahead. Everything is really linear from here on. In the next room, carefully walk over the narrow strips of land
and go upstairs to the seventh and final floor...
In the next room, you finally meet the man you have heard so much about,
Agahnim...and the princess! "Behold! The last moment of Princess Zelda!"
He makes Zelda disappear, then goes behind the curtains. Ha! What a dumb
place to hide! Cut down the curtains and follow him.
Now it's time to fight. I consider him to be a boss, so go check out the
boss section for details on defeating him. After he is defeated, he will
use his last ounce of energy to draw you into the Dark World...