It came out of nowhere.
Felix was flying through the shattered skies, enjoying the sights of the many portals, taking the occasional selfie. Then the threads of energy formed between the portals. Felix almost flew straight into one. That kind of thing never happened. And the threads multiplied and filled the air until one...
...Felix now is somewhere else entirely no idea how he got here. While flying through the wilderness the pain starts and eventually culminates with a blood-covered pebble coming out of his mouth. Which was only supposed to happen if Felix was somewhere else so far that the magic that allows his immortality couldn't reach and the only possible place like this would be another universe entirely.
An hour, he gives himself that much time and uses it, but by then Felix decides that crying isn't useful anymore no matter how much he wants to.
Instead Felix searches for civilization, since he is going to stay in this world for the foreseeable future.
"I don't recognize those names. Except Orussia sounds like Russia. Are we somewhere in Eurasia?"
"Eh, we call it Europa?"
"Dragon," the one with the lightning attack interrupts, "We should start heading home. That was tiring and I don't want to hover for half an hour having a conversation."
"Oh. Do you mind following us?"
Felix debates for a second and decides to leave the pebble where it is.
"Sure. I really need to learn about the world. And we have Europe. Eurasia is the sort of the combined zone of two continents Russia extends through them both."
"As far as continents we got Europa, Africa, Australia, North and South Liberion, Antarctica, and some people count the Deep Pacific Island Chain even though it's just a buncha islands and not a proper continent." She asks the quiet, dark-skinned third Witch, "Which way?" She replies quietly and the three start flying off.
Felix follows. "I haven't heard of that Island Chain. We have North and South America, which might be our equivalents. How often those Neuroi things attack? Also the year where I'm from is 2016, how about here?"
"...Fourteen twenty four."
That would explain the fact that they're using bows and arrows, and the rather primitive nature of the guns they were carrying.
Yes it would explain.
"Okay, since my European history is kinda of rusty, I want to be sure I didn't time travel. Any chance that you have pocket dimensions? Or, I guess the term was hiddelands, anyway do have those?"
The French one says, "Hmm. Didn't Glida the Grey have a pocket dimension?"
"Yeah. Couldn't go into it though, just store things."
The quiet one is still quiet.
"I am talking about places, some the size of continents that people can go through. Skymages originated from one in my world. And they should've been known by the 15th century."
"I know you are not Skymages. You don't have wings," Felix says waving his own red-orange ones. "We have the occasion monster. The Stormlands even have things that create storms, but that wasn't one of them."
"Well we get something like a dozen Neuroi a day and it takes most of the combined efforts of the worlds' combat-age Witches to keep them back."
"Yes. So do you have a chain of command so I can figure out the best way to help?"
"For sure. Highlander's our wing commander, she's a bloody noble, people at the top listen to her. What can you help with?"
"There is the things you saw..." Felix says then he thinks for a long while.
"I'm immortal and I can expand a pocket dimension while sleeping. I can create... nearly anything non-magical in it."
"I'm constrained to something like three cubic kilometers per hour of sleep, but I can make farms and my pocket dimension also has this property where fire doesn't harm or consumes things. I can make an eternal fire and underground farms that way. I probably can make technology that is better than what you have too."
"You are going to help a whole lot of people."
Fly, fly.
"Anything I can do to help you? Don't expect there to be much but I will probably do it."
"I- thank you for the offer. If there is a way to take me back home that would help a lot and then we could pool more people to help with the Neuroi. I bet a Witch-queen could fight one of those things easily."
"There are teleporters. I can't say whether any of them can teleport you home. Witches aren't queens as much as you might think? We don't do politics as much as we could, generally. Unless you mean something other than a married woman ruling a political body with that word."
"Oh, I meant something different from what you are. Witch-queens are another type of magical person where I'm from. Very powerful. Typically rule their own little kingdoms and fight each other a lot."
"I see. A full wing of us can best a Neuroi pretty easily though, especially veterans, even moreso now that we're starting to get weapons that aren't entirely useless. Usual flight size is eight to fifteen."
"A single witch queen wouldn't have taken as long as we did to defeat a Neuroi. I wouldn't be surprise it took a single strike. The main issue is convincing them to come to your add."
"Oh, true. Sorry, how long until you get back to wherever we are going?"