From the rooftop save spot, go right and down the ladder to the tracks. Head right and get on the trolley. Activate the lever and push the controller left to make the trolley roll left. Take the trolley down to the very end. Now jump up from the trolley to the ledge with her. There's another save spot here, Trolley 2.

Now head along the wall. There are a few steps then a jump. You jump first, then she follows you and you catch her. Go to the end. You jump onto a hang-by-your-hands rail and go across to a lever. Hit the lever which swings over a box on a chain. Now go back on the hand-rail to her, and jump onto the box. Have her jump over too.

Now climb up the chain, walk on the plank back to the roof, and go to the right. Lower yourself down the ledges back to the lever. Turn the lever to move the crate around to the right. Now go back to the ledges, jump back up, walk back out and shimmy down the chain.

Now jump from the box over to the castle. Stand right on the edge and call to her and she'll jump to you, and you catch her. Now save on the circle stone area, at "Crane".

I have a time of 00:49 here.

The Ico Walkthrough

Please swing by my Forum to ask me how to get through if you're stuck somewhere I haven't put up yet. I'll get back to you quickly.