Clara shivers at the mention of 'true death' because it feels like someone walked over her grave. Cartwheeled over it, even.

"The way you talk about it! Sounds like this has been a practice that's been done a lot of times," she observes, feeling a bit sad at the thought of so many people, angry and desperate and bitter and hopeful, doing such a thing for something they thought was worth it all. "All those stories I've heard before -- crossroad demons and deals with the devil and such -- were they all connected to the fae then?"

Have they been doing that for that long? Steffi did say he's been doing it for over fifty thousand years, give or take. She's pretty sure electricity wasn't around in those days.