After a month-long dry spell, I finally had another lucid dream and attempted to visit the Dream World Academy. I found a castle, but I didn't get much further than last time.

I am walking down a hallway, looking for something. I open a door and it slides open rather than swinging open. I think this is odd and I realize I am dreaming.

I remember my task and I say aloud that I am going to the Dreamworld Academy castle. I step outside and see a huge black cloud in the sky. I go back inside and try again. This time there is a giant castle that reaches up to the sky, like a single tower. I look straight up but I cannot see the top of the castle.
Then I remember that I had meant to go directly to the entrance hall. I see a fountain nearby that I am going to use as a button to transport me inside the castle.

But instead i just call out my intent, putting my hands up over my head. I begin to fly, then lose lucidity.

The castle looked something like this (quickly drawn in MS Paint):