Fernando does not need to put his limbs anywhere, but his flight fails to produce enough thrust against the pull of... whatever that bright light in the middle of the room is.

Thomas manages to keep a grip on the wall and on Katur's shirt, but the damn thing is slipping...

...he throws Katur, and their boyfriend lands away from the pull of whatever the fuck that is.

But his grip on the wall slips, and he collides with Fernando.

Fernando is not happy that his attempts at catching Thomas lands in a three way collision.

But there is not much they can do except being swallowed by the light.

The light is all they can see.

And then it isn't.

The pull is replaced by ordinary gravity, and they fall into... cold water?  Something gives way, dropping them another couple feet onto a hard surface, along with about a hundred gallons of water and several large flopping fish.

The light is no less bright, but it's shrinking rapidly.

A voice shouts something, coming from the opposite direction than the light.  The words are unfamiliar, but the tone is plainly recognizable as 'what the fuck?'

Felix would've agreed with the statement if he wasn't busy being confused.

The light upwards... Is dimming and as his mind races to assess the situation Felix concludes the most logical course of action.

He throws a fish at it.

That done he would like to see where they landed.

In the lingering light from the portal, he can see low tanks of water surrounding them, made mainly of some kind of tough clear plastic patched with an assortment of different materials and no two quite the same size.  Past the tanks off to one side is a pile of broken chunks of stone and concrete.  The ceiling is hard to see beyond the light, but the air has a still, slightly stuffy feeling that means it's likely some large indoor space.  The thumping, swishing noise of a pump comes from somewhere nearby, along with the flopping of the remaining fish.

And a tall, muscular woman is stalking toward them through the tanks. 

Alright, the three will climb to their feet and try diplomacy. 

"Hi? Sorry, but we have no idea what just happened."

She says something longer, in a warning tone and still in that unintelligible language.

"Wait, didn't we have a translation thingie?" Thomas says patting himself.

He produces a bracelet from a pocket and puts it on.

"Hello? Is this working?"

"What are you doing here- how did you get in here- oh, heck, are you changelings...?  Is that what changelings getting thrown back looks like?"  She stoops and starts tossing fish back into the undamaged tanks.

"Girl, I have absolutely no idea. One moment we were exploring, then bright light, and then here."

They can help her with the fish. Fernando asks something for Thomas to translate.

"So... where is here? Also, changelings?"

"Right, so- year's 4118, you're on Ida Mark 3 in the Eridani system, Sector 5.  I... actually have no idea who does new-changeling orientation around here, but I know people who could tell you."  Now that the portal has dimmed, most of the light in the area is coming from a dim greenish-blue glow high overhead.  "Changelings- when are you from, that you haven't heard of changelings?  Where were you before you were, uh, exploring, do you remember?"

"Uh... hold a second," he turns to his brothers, "so she is telling me that..." and relays the information.

They talk between each other.

"Okay, so... I really doubt we are changelings as you put it. Whatever that is. We are from this demiplane called Elsewhere, and before that we lived in two other worlds, called Earth and Elan."

She starts a little when he mentions Earth, but recovers quickly.  "Might be you have a different word for them- what I call changelings are people who were abducted by these- extradimensional aliens?  We call them the Thurisaz, you've probably got a different word for them too- they've got some kind of magical oath powers, maybe something to do with dreams?  Can access this weird dimension where directions don't work right, any of that sparking something?"

Thomas starts shaking his head. "No, no, no. Elsewhere sometimes kidnaps people, but that is... the place itself. We don't know of any aliens, unless you count the different humans from different worlds as aliens."

"O...kay.  Uh."  She reaches into the tank nearest Fernardo and transfers one of the fish to a different one.  "I... don't think I can get you back where you came from.  Could probably get you offplanet, but unless you have someplace particular to go, you might not be any better off."

"Hold on."

He updates his brothers on this.

"I figured we might have end up in a different universe, but I assumed it was a known one. That's why I threw the fish, so the people could use it as a focus."

"That is still good enough to land of this planet."

"Okay," he turns back to her, "So, the good news is that the problem is likely solvable from our end. We will just have to wait awhile, maybe weeks or months. And, uh, I am Thomas Vaesteri, these are my brothers Fernando and Felix."

"Do you have to wait right here, because that is going to cause some problems."