"Lucky for us we ran into someone who successfully invented her own magic system. Perhaps she can give you some pointers."
"Bet she can," Royal agrees. "But inventing your own magic system can't be that easy or everybody would be doing it."
"Are we sure everyone isn't?" inquires Tea. "It would explain the mess."
Royal laughs. "I take your point. I don't know, I'm not the expert. I'm not either of the experts."
So the following morning after she hops out of her tree into Tea's crypt, Promise investigates the height of the sun and calls Castle.
"Hello. Is this a good time to talk about the possibility of me inventing my own form of magic rather than spending decades attempting to disentangle the stew of them?"
"Sure," says Castle. "Why not. It's been a while since I was in that position, but I think I can probably still help."
"If you want to have a long conversation about magic and potentially do some practical tests, it'll be more convenient to meet. If you just want a quick chat about theory it'll be more convenient to talk on the phone."
"If I give you my address, can you find it or have Tea find it for you?"
"Hello," she says. "Tea, would you like to join this discussion?"
"I could lurk beneath your windowsill instead, but honestly inviting me in seems simpler all round."