A stone canoe appears, hovering three feet over the water. There is a human sitting in the canoe. He looks quietly miserable.

Yvette looks at him, a little alarmed. At first because that human definitely just appeared out of nowhere, and she has to deal with unexpectedly being pressured to keep herself from murdering him for his delicious blood, and then because that canoe is floating three feet above the water and that is definitely not normal, and then -

Then she notices after a quarter of a second of stunned staring that she finds his obvious quiet misery intensely and very personally upsetting and that also when she's paying attention he's the most beautiful human she's ever seen in her life.

I apologize for appearing so suddenly, says the suddenly appearing human, by some means of mental communication that very conveniently transmits meanings rather than words.

Oh God, oh God, she's mated to the suddenly appearing human. It hasn't even been a decade yet, she thought her pickiness would buy her at least a decade before her species went and forcibly attached her to a stranger. Instead, no she miscalculated she is now stuck on this innocent person forever because she wanted immortality and magic powers and either gets a blissful eternity with him or eternal heartbreak, and this is way more than she thought she would be dealing with today she is not at all prepared to handle it.

She cannot quite compose her thoughts to something more clear than a vaguely directional panic. Communication's important, right, she should try that, he's successfully talking to her in that whatever the fuck that is. She should try to reply.

Her only success is a slightly strangled and distinctly un-vampiric squeak.

Well he really isn't sure how to deal with that at all.

Nope she can't, she just can't, she cannot handle this right now and she is doing him a disservice with her incompetence.

"C-can you, just. Wait right here. In your magical floating canoe. Because I think I need to get my brother because I am incapable of handling this right now, I, I'm - I'm sorry -"

He does not speak her language but he gets the approximate gist.

She attempts and fails at a smile, and then immediately flees at super speed without regard for freaking out the human, leaving behind her pile of pretty jewelry.

(AAAAAAAAAAAAAAAAAA)

He can... just sort of... sit. In his canoe. Floating over this pond. Yes.

Eventually another pale, golden-eyed man shows up at unnatural speed. He bears some resemblance to the red-haired one that fled earlier.

"Hello," he says, a bit experimentally.

I'm sorry, I don't speak your language.

... That's all right, this seems to work fine. This is working fine, right?

Yes.

And in the thread of unspoken implications woven into the overt communication - he is just so, so confused.

Well that's. Certainly a person that his power is telling him about. A person that has devoted everything he is to one thing at great personal cost and suffering. Okay.

Sorry, that was probably a pretty confusing thing to arrive to - hi, I'm Blair. That was my sister, Yvette, she got overwhelmed by a number of things and retrieved me so I could talk to you and answer whatever questions you might have.

I am Korovai. I don't understand why my sudden appearance frightened her so much, but I'm sorry about it.

It is absolutely not your fault, and she's not upset with or frightened of you, but I'll relay your intentions to her when I get the chance. I can try to explain?

That would be helpful.

So, I'm a vampire, so's my sister. We both used to be human, and then at some point we changed species. This comes with a number of benefits and drawbacks, but in short, we get superpowers, a chance at immortality, and potentially a set of personalized magic powers, among other things. Some of the drawbacks are more obvious than others, such as an unquenchable thirst for blood that if we slip in our self control could potentially drive us to kill innocent people to try and sate our thirst, an unappetizing diet of animal blood if we think that killing people is wrong, flammability, slightly unpleasant throat pain, and a number of other more minor things. One of the stranger results of turning is that vampires have a bizarre mental construction that causes them to very occasionally fall in irrevocable single-targetted permanent love at first sight with someone that they could plausibly happily spend the rest of eternity with. Which is why my sister is now seeing how close a vampire can get to hyperventilating. Pause.

This is the part where I reassure you that she is not at all going to ask anything of you, and freely chose to become a vampire, understanding exactly what she was getting into.

I find it very implausible that anyone could happily spend the rest of eternity with me.

Blair considers him.

What makes you say that?

I am not presently happy and do not strongly expect that I ever will be.

What makes you so sure happiness is not a thing you'll ever get?

I have something very important to do, and I will not be happy until after I have done it, and I have no guarantee that it's possible.

.... My sister's got a similar project. That is, stopping vampires from killing people for food. She can be fleetingly happy in the interim, but it will always bug her if she doesn't manage it. So. Uh. I predict her response is going to be either 'All right, then we start with yours and then once that's done go do mine' or vice versa."

It seems very likely that hers will be easier to solve than mine.