It's just about the absolute last thing I'm expecting. In fact, even if Derek had given me a list of possibilities with Magical Wolf Potion included on it, it'd probably be at the very bottom of what I'd have expected.

For a moment all I can do is stare.

It's such a small vial. A part of me doesn't think it can actually do what he says it can. But I know what I saw at that party and I know what's possible in this city. And, moreover, I know that Derek wouldn't tease or joke or lie about something like this.

"You're serious," I finally manage, looking up to meet his eyes again. He still looks nervous, I can't help but notice. "You... I mean. You'd turn too, right? It wouldn't be just me?"