[Okay, it's not nearly as hard to hold on as I expected. I was just a tad worried 'cause I can't use magic to stick to you like a broom. You can keep speeding up unless I say otherwise.]
She'll keep having fun even on the relatively limited running area until he gets tired or hungry, unless that time is several hours from now.
So they go have food, and Gren settles into the rhythm of the village and does miscellabeous work and follows when the capital moves until about a month later...
...When eleven more witches appear around her in the capital compound, holding various antique weapons.
The swordswoman arrests her own swing, they lower their weapons. One asks, "What the hell's going on, Gren, where even are we?
"Really long story. Ten second version version is I started working for some benevolent vampires and the wolf is my bodyguard."
Sword lady says, "Jesus, I thought I'd be leading a rescue mission. Or a body-retreival. Sorry for the violent entry, everyone."
"As you can see," says Bella, "Gren is fine. I'm Empress Isabella Cullen of the Golden Empire. And you are all in my mindreading husband's range, which you may if you so choose stop by proceeding in that direction, down the stairs, and outside any direction you like for a mile."
Sword lady nods and announces, "Anyone who wants to get, get." Seven of them follow her directions to fly outside and proceed north into the surrounding wilderness.
"Once again I apologize for this invasion, Empress. I am Captain Morgana McAllister of the United Defense Force. I think we have a lot to discuss, is there a better place than this hallway?"
In they go.
Captain McAllister begins, "I am not actually authorized to negotiate on behalf of the UDF, just the clan of McAllister, but Grendyne's... Summary... Indicates there are good possibilities for cooperation between our worlds."
"Naturally I would be interested in weapons or magic to help defeat the Neuroi. Lytee can make a one-way trip between our worlds approximately twice a day, bringing up to 20 individuals or 10 tons of objects. There are other teleporters available, but not immediately. Is trade of goods or magic an option here?"
"If teleporters consistently exist on your world, trade of goods is absolutely of interest and certain forms of trading magic are possible."
The captain nods. "What kinds of goods or magic are you most interested in?"
"Considering the situation I think we can consider some initial shipments foreign aid. It isn't overwhelmingly likely that you have any manufacturing that we need here in quantity, nor the means to effectively collect any natural resources we use; I'm more likely to be able to make effective use of creative works from your world, which will differ. I am definitely interested in the possibility of hiring more witches of your variety, though."
"I'll buy out my contract if you insist," Gren says, "But I was cut off and had no hope of returning. And I probably just landed the UDF the mother of all force multipliers. I'm not going back into combat without a damn good reason."
The commander scowls and mutters 'coward' too low for any but the vampires to hear. "Yvette?"
"Take someone there or bring someone here to negotiate. Either way, good things."
"What do you think, Empress? Here or there?"
"Yeah," winces Alice, "can't see anything in or after a visit to the other world."
"In that case I'd prefer to hold negotiations here."
"At any rate, I'd like a piece of tech to serve as proof to get someone high enough up the chain to believe this."
A very bored-sounding Witch drawls, "Better show me where to land next time too."
"Do you care what the piece of tech is, or can we just give you something convenient like a flashlight?"
"Flashlight would be enough for a diplomat, but if you want to get the UDF opening negotiations in any kind of a hurry, it should be walkie-talkies or a gun or something similarly militarily obvious."
"Getting guns is a little legally complicated in Canada and we don't keep them around or have established channels for getting them... I'll have Razi pick up a walkie talkie set." She pulls out her phone and sends a text.
"Not off the top of my head. UDF has witch directories, we can have them look it up."
"I'm perfectly happy to have appropriately vetted people turned into nonvenomous hybrids," says Bella. "That doesn't have the same containment problem."