"Oh, I have no idea who you are," Matilda assures the other dad brightly. "It's just I'm working on a project to make everyone immortal, and I figured out dragons already but it was particularly easy because of how their magic works, and I think vampires might also be easy for a similar reason so I thought I would find some vampires to try next, and you are vampires. If you don't want to, I can try someone else, though."

She pauses for a moment, reviewing the information she has provided, and then clarifies: "I have a kind of offworld magic that can do all sorts of marvelous things. It's called ialdae."