"Fine. A truce. Do you know where he's headed?"

"I don't know where Matt lives, but it wouldn't surprise me if it took him minutes to find out. He'll be headed there, to kill him in his sleep."

Aaaaaaaaaaa.

"Scott, do you know where he lives...?"

"No. Allison, you've been there, right?"

"Recently. I can take my dad there. Can you track us down?"

"If that's alright."

"Lives are kind of at stake, Scott, it's fine."

"If you need a ride, I can stop by."

"...My motorcycle should be faster, but thanks."

Oh god, no. No no no no no she was on that abomination twice today that is more than enough for a lifetime she does not want to -

"Faster would be better, yes," she says anyway. Why.

So they hang up.

Scott drives.

He seems to enjoy the experience more than she does.

He sniffs the air.

"Okay, it's harder to smell her while she's in the car but I think I have their trail," he shouts over the engine. 

"Awesome," Yvette says, wondering why she is even here. All she can do is summon an eldritch book this is not worth the torture why has Scott chosen her to be his adventure buddy she does not think she is cut out for this kind of work if it involves motorcycles why.

But she's coming along anyway, because sitting at home wringing her hands and trying to avoid her book doesn't appeal. And maybe she can help.

When they arrive, Mr. Argent and Mrs. Argent have guns pointed at an older man- presumably his father. 

Their daughter has a bow at the ready, aiming for his chest.  

Gerard has a knife to the throat of a kneeling boy their age.

These people. Why.

"Hello!" says Yvette, aggressively faking good cheer because that seems likeliest to get this knife person off-guard. "Can I call a brief truce to talk before anyone does anything rash and permanent?"

"I'm only interested in permanent. All I want in exchange for peace, is the bite. Scott, I think you'll have to be the one to administer it. Sorry about that little disagreement we had- I'm sure we can move past that for Allison, and for the town." 

"You want the bite? I suppose we finally  see which of us deserves the Argent name."

"I'd rather live a werewolf than die a human; this illness isn't getting any better. Now, let's make this simple. Bite me, everyone lives."

"I can take the shot, but he'll slit Matt's throat. Your call," she says to Scott. 

And Yvette.

Oh god damn it do any of these people know of the concept of looking for other options before escalating?! At all? In any way?!

"Would you like to live as a murderous puppet of someone else, screaming from the inside of your head as you're forced to kill, unable to control your own actions as the rest of your family hunts you down to kill you for your own good and the good of those around you?" wonders Yvette. "Because there is a chance of that," a high one, with how idiotic he's being, "and at best you'll estrange your entire family, it sounds like. You know your options aren't 'die' or 'become a werewolf,' right? Magic exists, who says it can't be used to cure illness?"

"If magic had any solutions for me, do you think I'd even consider this? The power boost is hardly nothing, but it's not worth turning my back on humanity. Health and longevity are. Really, you've forced my hand. I can kill two birds with one stone. Eliminate the clear and present danger, and save myself in the process. The Argents will hardly declare war against the town's savior."

"The bite is not a gift. I will not put an albatross around your neck so you can hang yourself."

... Does Scott have some downsides to werewolfhood that Yvette isn't aware of? Or is he just being angsty because his girlfriend's parents kill them? Could go either way, really. Also, Scott, what kind of mixed metaphor was that? Yvette is mildly ashamed to be associated with you right now.

"I'm not as sure as you are that magic has no solutions for you. Do you know of all branches of magic ever? Have you, for example, heard of a blue book with stars on it and gold edging?"

"Dad, magic isn't the answer. We can find a way to fix this, I know the latest regimen isn't working but we can find something. You have time."

"I'm not getting any younger, Chris, and you must have noticed how frequent the coughing fits are getting. Even the McCall boy noticed. Your sister was always better at doing what was necessary. I made you too soft, expecting that you would follow her. Too bad you got her killed."

"Grandpa, please listen to her! Yvette might have something you're never heard of, no matter how much you've read."

Yvette has a brief internal debate over whether or not she should reveal her terrifying eldritch book in front of these people. ... They all seem kind of batshit insane. The trouble with using another bad guy as a hostage is that Yvette is really starting to see the appeal of just getting them both killed. It would be tidier. But it would kill her social credit. But then, so would being the bookholder of a terrifying eldritch book of possible apocalypse, so, she's kind of in a lose-lose situation here.

Except she sort of also did reveal her hand, didn't she. Hm.

"That is a distinct possibility. Ever heard of quantum theory? Multiple universes? I'm from 2016, when I popped up in front of your daughter-in-law I was rudely transported out of my home, to here. Heard of that before?"