When she wakes the next day they're gone. There's a note telling her they have classes and will be back later, as well as the fruit she didn't eat last night and miscellaneous packaged foods that they presumably bought before she woke up and several water bottles. 

She's very confused, at first, at having been left alone. But after half an hour of waiting, she gets up to look around the room, and discovers the note and the food.

She eats - just the fruit; she has no idea how to open the packages - and then resumes her exploration of the room.

There are a lot more little sculptures like the cat. 

Also a lot of books. 

What kinda books?

Many of them are textbooks, but most are novels or at least the kind of nonfiction you don't need college-level context to grasp. 

There's enough here that they probably won't miss one, if she picks carefully. Like this math book, say.

She sticks it under her pillow for now. Anything else interesting?

The drawer that Emily retrieved the glass chips from is full of miscellaneous trinkets like that, mostly broken things like shards of glass or half a ring, but with a reasonable scattering of the kind of thing you could pick up off the ground, like acorns or feathers or interesting pebbles. 

She's never gotten to see a feather up close before. Or a pebble, for that matter. She examines them for a minute, without touching them, and then moves on.

On Emily's side of the room, there are a handful of photographs. The twins are in a few of them, but mostly it's people Denice wouldn't recognize: a handful of adults (one of whom does have blue skin) and some teenagers, one of whom appears to have a full set of angel-like feathered wings. 

She examines these without touching them, too. (Can she get a sense for what the people in the pictures are like, at all?)

Everyone's smiling; these are photographs, after all. But their smiles are different. The blue-skinned woman is smirking at the camera, as though daring the cameraperson to comment on her appearance. One man--invariably seen seated, generally in a wheelchair--has a bright, beaming smile, while another often seen with him has a much smaller one, sometimes forced-looking, but deep and proud when looking at what appears to be a much younger version of the two girls who are hosting her. The other teenagers have the carefree smiles of teenagers recently engaging in the younger, less stupid version of a college "hold my beer" incident. 

That's... good. It's good. (It doesn't occur to her to think of it as something she could have. But it's still good context - makes it easier to think of the girls as people rather than staff.)

She moves on, again, eventually.

Edie has a jewelry box filled with what are probably, based on the style, Emily's creations. 

- that's getting a little personal. She puts the box back and goes back to the bed.

Did the note say when they're due back? Is there a clock?

There is. They think they'll be back around three; it's currently a little after one. 

It's math time, then.

The girls return at the promised time. They aren't sneaky, either, she should have a little warning. 

Yup. She puts the book away with half an hour to spare, and eats some more of the fruit while she waits.

[Hi.]

[Hi. Everything okay? No heart problems?]

[I'm fine.]

[I'm glad. Do you want anything?]

[...Like, I don't know, food that isn't fruit or chips.]

[Okay.]

She glances at the unopened pile of packaged food, and adds, [Maybe also scissors?]