Get off the sofa and make your way straight through the gap in the wall.
You will need to jump onto the circle item in the middle of the room which will allow you to walk along the curved wall to the platform in front to pull the leaver.
Once you have pulled the leaver, you will need to light your stick and light the two torches on either side of the item in the middle of the wall.
Once they are alight you will need to jump up onto the circle window and head through.
Once on the other side, make your way to the left and up the ladder and across the ledge where you will need to pull the leaver.
Once you have pulled the leaver, light your stick and jump down, head passed the princess and light the torches on either side of the window then make your way though the door back into the previous room
You will need to relight your stick and light the torches on either side of the window located in this room.
Once you have lit them, you will need to pass through the window with the Princess, jump down off the ledge onto the stairs below. You will need to wait for the Princess as she will take the ladder.
Once you are both back together, you will need to defeat the Princess of the enemies located in front of you.
Run forward on the Castle wall and head through the door next to the ladder, once through the door you will need to head back outside and make your way up the ladder, once up the top of the ladder head through the door to pull the leaver.
Once you have pulled the leaver, head back to the enclave and pick up the sword, you will need to jump over the ledge and pull the leaver on the other side and make your way through the door and down the ladder.
At the bottom head through the door and make your way across the bridge to meet up with the Princess, you will need to take her along the bridge and through the door you just came through.
Once through the door, head along Castle walls up the stairs and through the doors at the end.
After you have made It through the doors, you will need to head up the ladder on the left and make your way up the stairs.
Once up the stairs you will need to cut the string.
Meet back up with the Princess and head through the door and sit on the sofa.
Make your way back through the door and you will need to do a massive leap all the way up to the top ledge onto. (the ledge with the small metal balcony)
Make your way across the ledge and pull the leaver at the end.
Take the metal lift down and head through the door back to the Princess.