We made our way through Merlin's door and into a black-and-white world on a
quest to save the castle.

We ran into Pete, but he was a completely different person. Maybe he wasn't the
one who fooled with the castle. While searching for another mysterious door, we
discovered a suspicious window. We tugged on the pull cord and saw what had
happened in this world moments before we arrived.

We knocked on another window and saw Maleficent angrily scolding... someone.

Yet another window showed a door identical to the one Merlin had made. It must
lead to the same black-and-white world.

Finally we learned the truth: these mysterious doors were connected with the
past - and that's exactly where we were.

The final window showed Pete not as he was when we first met him in this world,
but as old Pete the villain.

We brought Pete's boat to a halt and kept the Cornerstone of Light safe from
harm.

Sora's Keyblade sealed the door shut, so Pete wouldn't be able to come back to
the past. The Cornerstone of Light was returned to its rightful home, banishing
darkness from the castle for good.