She nods. "The working theory is that some of them turned their True Names into invocations, or enchanted it. The King in Yellow is his title, not his name."

She laughs, bitterly. "I'm not even telling you his name so you aren't tempted to say it, but it starts with an H. Cold Caesar, SHIZUN, and other ones are summoned by equations rather than monikers. I'm going to focus on the King's pantheon, because it's probably going to be them we run into, but let me know if things don't seem to add up to Cthulhu and Friends."