There is a book held open with a rock and a wooden stake; and next to it a messenger bag; and beside these a teenage girl, painting goat blood onto the floor of a crypt.
"...that'll probably do but I think I actually want to do more comparisons of respective Earths before you go zoom off, if you're from 1964 or something that's another set of things I might have to warn you about."
"I am... conversant with it? This is around the time Revelation occurred, I read a book about the social milieu of the era several years ago."
"When knowledge of summoning was publicized. Prior to that, it had been a very closely guarded secret. It was an exciting time, by all accounts."
"No other supernatural entities chose that moment to reveal themselves, and I've come across no hints of any since."
"Interesting. And yet you were summoned... albeit with a diagram intended to do something else entirely."
"And to a parallel world, with vampires and witches and various other mythical creatures."
"Yeah. You think you might not be able to come back? Even if I tried this spell again or got a piece of chalk and did it that way?"
"It seems likely that this circle working was a fluke. Every summons I've ever taken, and every summons I've ever heard of being taken, has been to the same world, the one I was born in. Parallel realities were a thing of fiction. I expect that if this circle could consistently be used to summon fairies, the author of the book would have known, and described the capabilities of the summoned entity differently. I suppose I could teach you what a proper summoning circle looks like and you could try drawing it."
Ellie takes them, and sketches a small demonstration circle that will target an angel of her acquaintance. She points out the various standard bindings and explains their purpose and the importance of getting them right and that you always finish the circle as the last step.
"Yes, I know him and he would be happy to help with testing this, even for nothing in return."
"For angels? Houseplants. Living things are hard for them to make out of whole cloth."
"I suppose. Shall I move the blood out of the way, or were you going to try somewhere else?"
"Don't have chalk on me at the moment, and I didn't buy enough goat blood to do this twice, I'll have to try it tomorrow."
"We could meet back here first thing in the morning? By which I mean like nine, I don't get up super early summertimes."