"A sorcerer is... someone who knows how to do some things with sorcery, pretty much. You saw me heal myself. I can do lights and gates and transmutations and grow plants and purify water and candy dewdrops and stuff."

"So a little like a mage in our world, except your magic is clearly different. Candy...dewdrops...?" 

"They're tasty."

"That is so odd and specific! Does feeding them to someone make them your vassal?" 

"No, pure-enough water is safe and the candying magic doesn't change that."

"Huh. Are there kinds of magic user other than sorcerers, in Fairyland? Or, hmm, kinds of being other than fairies?" 

"No and not except for captured mortals."

Well, that's simpler than it could have been. "Who captures mortals and why?" 

"They're a sort of status symbol. Can't eat anything safely, so if one wanders through a gate someone'll get them sooner or later."

Nayoki makes a note of that and frowns again, confused. "But you can eat the food safely there and not here?" 

"Fairies can occasionally get each other foodwise but not usually, it has to be a strong claim pressed promptly. Mortals eating fairy food or vice versa it's much stronger."

"That is so odd. Is the food magically different?" 

"I'm not sure what you mean."

"What is the mechanism of the food having different effects on fairies versus on mortals? Is it something mage-sight could observe or is it - somehow not that kind of thing?" 

"I don't know what mage-sight is."

"Do sorcerers have an ability to sense other people's magic when it is being done near them?" 

"Not if it's... I don't know, on the other side of a wall? I'd notice if there were a light in front of me and I didn't put it there."

"But you see only the light itself, not the fact that magic is happening directly?" 

"Right."

"Hmm. Well, we have another kind of sense that is specifically for magic. I think your tear must have showed up to it, that is what the wards detected. Your orders from Thorn did not show up as magic but they were visible to my Mindhealing Sight, which is a different kind of Sight - like Thoughtsensing, which is blocked right now by your talisman, but it shows only the structure of minds and not any of the content." 

"...the structure?"

"I am not looking anymore since there is no reason to, but - sort of like this." She gets a piece of paper and sketches the outline of what her Sight sees. "Unless I am trying to get details, which I was not, it is mostly just an overall shape. And then your orders looked like this." She draws an approximation of the not-set-commands on top. It's kind of a terrible drawing, Nayoki is not artistically talented. 

"Hm."

"Most Gifts on our world come with Sight. Healing-Sight shows the insides of bodies, for example, and Empathy reads emotions - neither of us here has that one. Farsight is a Gift that lets you see things far away, although this can also be done by a mage, with a spell called scrying. Fetching moves objects, we are not sure if it has Sight..."

She goes through the full list of known Velgarth Gifts. 

"I don't want anyone doing Empathy or Mindhealing or the singing one to me either."