"Thaumaturgical engines," Corbie explained, looking up from her hands. "Engines that are powered by magic. And the dream things... well. That's harder to explain. Oneiromancy hasn't been much of a thing for a while, so most of what I know how to do there ain't technically magic. It's more... meditation techniques. Organizing my mind, warding it from shit that shouldn't get in. I know the ideas behind dreamwalking, though Felix always told me not to unless I really had to. And I can ward other people's dreams, though I ain't had anybody ask me to do that for them yet."