The next weekend, they pack snacks, she disillusions Feral in case there are people who can see them who'll happen to look up as they pass, and Bella dutifully signs them off-campus and estimates that they'll be home by dinnertime - she expects them back much sooner - and they are off to Santa Cruz.
She notes the time, she and Feral find a nice park to sit in - visible, both human shaped - and have their snacks, and then it's back north again.
"About five hundred and fifty miles an hour," says Bella, "wow. So, really really fast."
He shifts back for a moment and looks around, stretching his wings and pawing at the ground with a hoof, then turns human again.
"Okay, so the nearest Dementors are... about twice as far away as Santa Cruz," he says, "one a little closer, off that way," he points, "and one a little farther, more that way," he points in a different direction. "The rest are way farther away than that. And I'm pretty sure I found Azkaban too. Really far away, far enough it would be faster to fly there through a tunnel if you had one handy."
"Yeah, Britain's really far away. Do you want to nip out and kill the closest Dementor right now?"
Bella hops on, doesn't bother doing anything to her hair because it's already nesty beyond nonmagical repair probably, and crouches low across his neck.
"You can land. You don't have to get that close," Bella says, drawing a wand.
Here is Glowy Person.
Bella and Glowy Person advance towards the Dementor.
There are some cows around; if the Dementor bothers them it's not obvious.
"Feral?" Bella asks, as Glowy Person chases the Dementor. "What are you doing?"
"Maybe. I don't exactly direct it moment to moment -" She pulls Glowy Person back closer to herself; it fidgets but doesn't go after the Dementor, which resumes circling. "I don't want the Dementor to get you, though, why do you want to look at it?"
"...Okay." She keeps her focus on Glowy Person. The dementor drifts nearer, then farther again.
Nothing catches fire.
He'd be surprised if he had room to be; this is not pleasant.
But under everything—
She's right, that Dementors are a death thing. He's not sure he'd say they're bad in the same way. Death is bad, but it has its uses. There are people Feral is willing to kill - people he has killed, and he doesn't regret any of them. There is no good use for a Dementor. There is no one Feral would put in front of a Dementor when he could just light them up instead. Of all the things in the world he is willing to take out of it, Dementors are at the top of the list.
It's edging closer. It could probably get him now, if it's fast; Feral doesn't actually know how long it takes to suck out a soul. But he's not afraid of that. Being near it hurts in every way it is possible to hurt; he can feel it, almost like tangible pressure against his skin, the positive charge from Glowy Person behind him and the negative charge from the Dementor ahead.
He takes another step forward.
Eliminating death is Bella's thing, not so much his. He thinks it's a fine idea in theory, but he doesn't expect it to work. Magic is real, but magic being real doesn't make the world a nicer place, it just gives it more ways to be nice or nasty as random chance and people's choices drive it.
Why not, though? Why not try? If death is the thing he sees when he looks under a Dementor's hood, then he is just fine with wiping it out. And if it's the thing that makes setting people on fire a convenient way to get rid of them - well, he's not that attached. He can deal with losing it along the way.
"Expecto Patronum."