When you start this level, you will need to head over to the left and make your way over and change your sward back to a stick.
Once you have changed it you will need to head over and make your way up the ladder to pull the leaver.
Jump over to the ledge and light the torches on either side of the window then jump through.
Once on the other side, you will need to light your stick again and head over to the opposite window and light the torches on that side.
Once you have done that, make your way back to the Princess and jump onto the circular item in the middle of the floor below.
Use it to jump onto the curved wall and make your way up the chain onto the ledge and through the door.
Once you are through the door jump down onto the grassy area and you will need to turn the large switch.
After you have turned it, head through the open window and light your stick, then pull the leaver.
Light the two torches on either side of the window.
After lighting them jump down and head up the ladder to the Princess, where you will need to take her out the door.
Make your way out the door and down the ladder, you will have to deal with some enemies that will try take the Princess.
Quickly head through the door onto the castle walls and run through to the door next to the ladder.
Once through head across the wooden bridge and through the door on the other side.
Once through the door head to the left and along the ledge with the Princess.
Head down the stairs and ramp and then up the stairs and through the door at the bottom.
Once through the door head down the stairs and to the right over the small bridge and along the wall and down the stairs.
At the bottom head across the courtyard and up the wide stairs and make your way through the door.
On the other side, head over to the sofa located on the left.
Jump off the sofa and through the large green doors, you will need to make your way across the wide catwalk.
After the cut-scene, you will need to make your way over the pendulums. You will need to jump on the left pendulums, once you have jumped over them you will eventually get to the ground.
Make your way over the ground and passed the gate, once on the other side you will need to pull the two leavers and move the box over the edge into the water.
You will then need to drag the box over to the ladder and climb it to flick the switch.
Jump back into the water and pull the box under the gate, use the box to jump to the chain above.
Climb the chain and push the item, you will then need to jump back into the water on the left side and swim onto the ground you will then need to walk over and grab onto the handle on the water wheel to pull you onto the ledge above.
Jump up onto the rope and head across to the right, jump down and keep moving across on the rope until you head over the pipe.
Once across the pipe, jump up again and use the rope to head through the cylinder. Jump over to the chain, you will need to swing to grab onto the next chain then onto the ledge.
Once on the ledge, grab onto the handle and head up to the ledge, make your way across the platform and over the gears.
Once over the gears, head across the rocks and through the cave on the left.
Move through the cave and along the ledge, you will need to drop down and jump across the ledges, you will need to shuffle across the rock until you get to the solid pipes, head across the pipes.
Once you have made it across to the other side, head through the gap in the rock and down the chain at the end of the pipe, jump over onto the floor below and head across the catwalk and make your way over to the left.
Keep following the catwalk, jump over the gap and onto the bridge, you will need to pull the truck to move the chain.
Jump off the rail bridge and jump down to the chain.
Once on the chain, you will need to jump to the ledge behind you and make your way along it jumping across the gaps as you go.
Jump across the two gaps and head down the broken ladder onto the middle building where you will need to head down a ladder once more.
Once at the bottom, make your way up onto the catwalk and through the door.
Once through the door, you will need to go to the left of the bridge and follow the ledge round to pick up a sward.
Head back round the ledge and through the door.
Head straight across the catwalk and through the statue doors.
Once through you will need to go through some more statue doors and up the stairs on the right.
Once you are at the top you will need to make your way up the stairs to the top of the alter to take out the enemies that are waiting for you at the top!
On the left you will need to jump up onto the high stairs and head through the statue doors at the top.
Once through, proceed forward you will enter a short cut-scene and then you will need to take out the enemy.
To take her out, you will need run at her at attack her pink shield, when she fights back it will cause your sword to be flung across the room, head over and pick it up.
When she throws her light attack, you will be able to reflect it with your sword and protect yourself.
You will need to start to run at her when she is throwing her light attack, this is where you will be able to run through her shield and stab her in her heart!
Thanks to KikujiroChan for the fantastic ICO speedrun.