"Huh. Maybe it does go outside, but outside is space, so they keep it locked."

"Or they don't want people breaking in..."

"That's a little bit more boring, don't you think?"

Nudge. "Okay. I promise to only offer fun exciting hypotheses from here on out."

Hee. "Are we going to try unlocking it anyway?"

"What's life without a little risk?"

"Longer?"

But she gets ready to open it anyway.

Giggle.

The door is rather easily opened via alchemy! And also messing with the lock seems to cause heightened electrical activity around it.

Beyond is: a much larger hallway, at least a hundred feet across, the ceiling arched and maybe fifty feet tall at its highest, made out of what looks like frosted glass. This seems to be a major thoroughfare. It's currently dim out, lights along pathways and tracks providing illumination but nothing in between those. Vehicles whoosh by on occasion, and there's beings about on the paths - a mixture of body plans, most of them wearing clothing. No one right near them.

"Well. That's- something."

"Yeah... It's cool. Definitely advanced technology..."

"I think it's night time."

Nod. "Fits with that building being deserted."

"Maybe there's an entertainment district or something."

"Oooo, fancy space nightlife. Sounds like my jam."

Shoulder bump. "Let's go for a stroll."

Onward!

They seem to be in a manufacturing or industrial district of some kind. The place is large, and densely populated - there's some indications the buildings they're passing are significantly taller than the tunnels' fifty feet. There are plants, at least, all growing in water in planters, and some of the lights illuminate artwork. Outside of the industrial district - probably a housing district, with a lot of shops and restaurants apparently open even at night, their signs illuminated, many showing moving images (presumably advertisements) or scrolling text. There's a brief well of noise a few streets over - deep beats like drums, probably music.

"Want to check that out? Could be dancing."

"Let's."

Towards the maybe music!

The streets fade into an increasing number of restaurants open at night, gradually resembling more pubs and bars - and even dance halls, though the silhouettes of scantily clad men, women, and other beings on some advertisements imply slightly less formality than Amestris's dance halls. Some of the buildings are probably also places you can gamble, judging by the imagery. The streets here are busier, and Bellona and El are rather under dressed - or perhaps over dressed, depending on if you're looking at fanciness or coverage.

Bellona, of course, is utterly fascinated and more than a bit delighted.

El is... maybe a bit out her depth.

Bellona grabs her hand.

"Want to head back somewhere less crowded?" she asks.

"Just... quieter, a bit."

Tug, away from the entertainment district, towards a quieter residential area and then stumbling on a park.

Nice.

"Sorry, that was just- more than I was expecting."

She pulls El down onto a bench, hugging her. "It's okay. Sorry I didn't notice sooner."

"Mm, it's okay. You're allowed to look at pretty things."