"So I work on you. I used to work on Mama, but then I stopped," Elspeth says. "Anyway, my witch power boils down to communicating true things. I can sometimes generate true things I didn't technically already know, if I attempt to talk about them to people who are interested in the topic and I have enough to go on. Jacob here is really interested in whether I'm safe, so before I'm allowed to take anyone home, I have to check how dangerous they are by telling him whether they could even theoretically hurt me."