The bedroom is small and cozy and has a loft bed and some minimalist furniture. 

"I didn't know what kind of gaming posters you liked," Lev says apologetically.

" - oh! That's fine, I wasn't expecting - they asked so many questions that I was just sort of taking them as abstract hypotheticals, it wasn't an official wish list or anything. This is great."

"I think they were? Supposed to be that. But I'm not going to get you a bedroom that's less what you want."

"It's really nice!" Oh hey, is this a chance to sprinkle the conversation with various conversational hooks, just in case they don't have enough of those? They definitely don't have enough of those. "I like Pokémon games. And Zelda and Fire Emblem, I guess, though I haven't played those in - a while. Pokemon's great, though, you don't get stuck like you do in other games. And Zana and Connor love them, so - liking stuff that they like is nice."

"Oh cool! I don't really play video games? But I have heard good things about Pokemon."

Oh god is she going to hate him because he doesn't play video games. 

"Honestly I don't much either, these days? It's - one of those things I'd like doing if I had time, and then I never have time. Mostly audiobooks on commutes and print books for bedtime stories sometimes, lately."

Also console games cost money she doesn't have. And she's gonna strategically leave out the dozens of Steam games on her computer that she bought for fifty cents apiece so he doesn't think she's a lazy weirdo who never does anything else.

"That's cool! Maybe you'll have more time for games now. What kinds of books do you read?"

"Mostly science fiction? And fantasy. And histories, I do read about real life sometimes. And random pieces of lots of the books I shelve, though if you read more than a page or so each time people tend to notice."

"...I should show you my library."

"Yeah, I'd love to see it!"

"But first I should show you the rest of your rooms."

The second room is a playroom. It was stocked by a person who doesn't know anything about the children they're stocking the room for, but has both a lot of money and the ability to Google "what do children like." There's a basketball hoop and Legos and a microscope and a kit that lets you make cool things out of circuits and a remote-controlled BB-8, for Connor; there's Lincoln Logs and Magna-Tiles and a pretend workbench and scratch-and-sniff markers and a pretend picnic basket, for Zana. Each of them has a shelf of books: Connor's has the Phantom Tollbooth and the Hobbit and Dealing with Dragons, while Zana's has the Cat in the Hat and The Monster At The End Of This Book and Rosie Revere Engineer.

" - oh gosh."

Well.

" - I mean I didn't bring them, I figured you were probably not looking to deal with a whole - this is really nice."

"Kids are cool. And I don't-- it sounded like from your file they are a big part of your life."

He ponders saying something about having always wanted kids but then decides that would come off as pressure-y or something.

"They are, yeah. I mean I figured they told you that, I just didn't - this is really nice. And they are cool. Like, kids in general are cool, but they're cool even as kids go. I am of course hopelessly biased."

"I bet they are cool! --I'm sorry, the file didn't say anything at all about what they liked, if it turns out Zana likes princesses and makeup kits I'll have to get a bunch of new stuff."

"Her current obsessions are dragons and astronomy. She only likes princesses if I give them magical weapons or make them the regents of kingdoms with complex political problems, like gnomes and skeletons not getting along."

"She sounds like an amazing kid!"

"I think so. I - should probably let them actually stay with their grandparents for a week and not drag them off to new places with zero warning, but I hope you get to meet them anyway."

"Me too!" Maybe if this all works out they can live here with us, he doesn't say. "I can show you the library if you want?"

"Sounds good!"

It is probably not possible to spend a billion dollars entirely on books but Lev has clearly made a good-faith effort to do so. 

There are a lot of academic books about psychology and neuroscience, and a lot of comics and fantasy and SF. The nonfiction is organized by the Dewey decimal system; the fiction by a system of Lev's own invention. Some categories are normal if specific ("alternative history", "steampunk") and some are not ("sexual-harassment romances", "dragon books"). All the DC superhero comics seem to be categorized based on whether the author gets Batman, and Venom appears to have been classified as an LGBT comic. 

Wow.

(Oh wow, she can actually read actual real DC comics and not just fandom wiki pages.)

"Wow. You have - improbably good taste."

"I have terrible taste! The only shelf in here where I've read all the books is the Extruded Fantasy Product shelf."

"Hey, if you know what you're about." Eeee this is such a good library. " - I don't want to mess up your system or anything, should I just - take notes before taking anything, or - anything I shouldn't touch - "

"Shelly-- she's the maid-- she keeps stuff organized. I mean, you can reshelve the books if you want to, there's nothing wrong with not making messes for the maid to clean up. But you can just leave anything you're reading on a chair and she'll take care of it."