"Yes, precisely. That's what we call aether."

Some things are similar between worlds, then, but differently named. It makes Joshua wonder what else might be the same.

"If Craft didn't call upon energy from the user, I might ask if I could learn something simple... But I've been advised not to use my spells unless absolutely necessary, so I'm afraid Craft would also apply. But I would be interested in seeing it, if you could show me?"