And back.

"That was 0.84 - which means you're traveling about 1.8 meters according to my calculator app."

"Huh, I wonder if they're all the same, tap me again and I'll go out to the next one."

Tap.

Out she goes.

"It was 0.85 that time? Hm..." Lucien can start a table and go about testing this systematically. 

She'll do this till he needs to go if he's amenable.

He is happy too!

They can eventually figure out that the non-void dimensions vary in distance between them, from under a tenth of a meter to almost a full meter. Lucien googles around someone and discovers that the consensus among espers who do 4D dungeons is that Earth is closer to a planck unit wide four dimensionally than to anything else, so if he extends that logic to the other dimensions Lorica is visiting it would imply that the actual dimensions are extremely thin, with the voids between them varying in four dimensional thickness. 

Interesting. She will publish these findings on the internet while Lucien goes to get some guiding done.

Well, Lucien and Lia. Who return together an hour and a half later.

Wave.

"I hear you two did science together."

"Yeah, the interstitial void dimensions are yea big." Gesture.

"Oh neat - and smaller than I'd expect, there are plenty of 4D dungeons that deep."

"Aren't things that move in 4D a bit cramped like that?"

"Depends - you can fit a lot of 3D in. Also some are a lot deeper than that."

"I guess humans usually don't want to live in environments that are a lot taller than us."

"Yeah."

Lorica gets her own place, a house with an unfinished basement she can track otherworldly substances into at minimal risk. She mails people leaves and stuff. Pays Lucien back.

Goes on the Internet and sees people talking about how they're not making rent or are refugees or need to get their cat surgery. She goes through four of these before she hits one that doesn't list a specific target amount and then that one gets everything left in her bank account.

She should really donate some blood. She goes and finds a blood drive. Two of them, actually. She puts an Uber on her credit card, it doesn't check her bank account, and goes and donates a pint at the first one - she doesn't actually know Nikki Carter's health history but they test everything redundantly, and nothing Nikki has is worse than not having enough blood. She Ubers to the second blood drive after and lies to them even more and they squeeze a second pint out of her and give her cookies, but someone else might want the cookies so she doesn't take any, and then she walks out of the blood drive and falls over on her face. Her nose bleeds surprisingly little, considering. It's okay, she didn't have any other plans lined up yet.

"Are you okay miss?" asks a man's voice.

"Oh, I'm fine!" she says, she can't take up any of this nice man's time. She sits up, tastes blood on her lip, and throws up on the sidewalk.

The man - who from this angle she can now see is clearly homeless - does not look reassured by this at all!

Oh no. "Do you want my house? I have a house but you can have it."

"Um." Does anyone else out here want to help with the crazy lady. "No thank you? Are you sure you're okay?"