"I'd say to remember their titles so I can summon them out for you faster, but it'll likely be fine either way."

She opens the bag without questioning or criticising his already large pile. Bibliophiles recognise bibliophiles. "Carefully." There will be, when he puts the first book into the bag, the sound of a few distant thud-thud-thuds as the books knock against...other things in there. Mostly also books.

"Right, the key." Here's a little eyeroll. "Gods forbid we actually explore other venues of investigation. Someone might send an army to help us along if we don't produce it fast."

Because Lan Wangji is paranoid and judgemental.

She looks over her shoulder, searching the aisles for - "Miss Eda was also here, we should join forces."

"He offered to send help - some rude man," she clarifies, under her breath. One more book in, something that looks vaguely mechanical-related, because there were requests.

"What a micromanager." She doesn't offer further explanation than that, but she might as well have called Wangji a Hermione.

"Yes, I think let's spread out and search for it - I have a spell to summon objects, but without the particular object description, it might summon all the keys present in this room." Which would draw attention.

She lets out a laugh at that, and slaps her mouth to muffle it, feeling like a bad child, caught with her hand in the cookie jar. And yet - he does have a point. Which is why it's funny.

She leaves to search for the key, in that line of thought. Doesn't even take many more books, because she's focused.

Later, she meets him in the middle again, frustrated. "Any luck?"

She is rather good with an Accio, having taught the bloody Boy-Who-Lived how to perform it in fourth year, extracurricularly. But, again, knowing the object is the trick.

She can't shout for the key to the House of Ravens without drawing some attention, but she could summon keys. And at least that would let them find the key faster.

The exit from this place, however... "If I do this, we'll have no way of putting back whatever objects come at us. It will leave a big mark - and potentially we'd have to run immediately."

"We didn't take that many," she mutters under her breath, either an excuse for her own conscience or to reassure him that maybe they could not be found. They might not.

"I have an idea of how to make a quick getaway, but I'll have to find Miss Eda first. You - would you be comfortable with letting me Apparate us? It..." Gods, explain Apparition to a non-wizard. She's fairly sure Moran's not entirely untalented himself, but they might as well be speaking different magic languages too.

"It's a spell, it transports people from one spot to another, but the caster has to know where they're going. I could try and do it outside the libraries, and we wouldn't need to sneak past anyone."

"I promise I know what I'm doing." She's side-alonged with Harry and Ron on the run, and only once did one of them get splinched. But there are bottles of Dittany in her bag for that anyway, and she is confident enough in her skills to subject what is, to her magic at least, essentially a muggle to Apparition.

"Find a remote-looking aisle, I will find Miss Eda."