[ He mentally draws the comparison to batteries, but given their conversation so far, he doubts she’d get it, so he doesn’t mention it out loud. The whole thing kind of smacks of Necromancy as he knows it, but it seems to be common practice where she’s from. He’ll keep his judgments to himself for the time being. ]

I know, you’re looking at me like I’m crazy, but we don’t have anything like this where I’m from. A person’s well of power is passed down through family lines. You’re either born with it or you’re not, and if you’re not, there’s nothing you can really do about it.