He wanders the stairs. His sense of physical coordinates informs him of the tricks they're pulling - seamlessly changing his elevation, transporting him directly to stairwells in different parts of the building when he takes a connecting door. Some of the doors lead to closets instead, for variety. There is a general absence of windows.
He doesn't know enough about matter manipulation or transport magic to think of any obvious solutions right away, so when he gets bored, he sends a finding spell - one that can pass through solid matter - to locate the nearest roof, and teleports onto it.
"Yep," he says, mostly to himself, but still in Leraal as a local default. "Those sure are some messed-up stairs."
He flops down at the edge of the roof and peers over it at whatever might be going on down below.
He wonders what eating is like.
Well, there's a pond right there, but - <Hey, Keo, is there food around here?>
<I can eat most things,> he says. <That was my dormant form you saw before; in my human form I have pretty much the usual set of human functions and systems, just - not so biological. More input leeway and cleaner energy conversion. Wait, what other species go to school here? Do you have magic talking ducks in this world or something?>
<...Well, I've heard of humans,> he says, giggling to himself. <Whatever. I can pretty much eat anything that's made of matter, as far as I know. I might have trouble if it was strongly corrosive or something. Where do I go to get a cafeteria pass?>
"...You don't recognize me, do you," he says, amused. "Last time we talked, I was about this big—" and he indicates with his hands the size of the Bicycle pack that his dormant form mimics.
"Hey, it's okay. I mean, I'm okay, now. Your - mom? Is she your mom? - really helped me out. Totally worth the meltdown."