They've left him alone in his cell.
He can't really be said to be lucid but he has very acute instincts for when there's someone and when he's alone - it's the last of his senses to depart him - and he's alone.
And then suddenly he isn't.
Yeah. Only to places I've been, usually, but obviously that's not the only way it can work - I checked the location-signature of where you were, I might be able to figure out how to get you to someplace else in that world from that.
She considers.
I can teach you, but it'd be slow or very dangerous or both, I only know teleportation and it's a really bad kind of magic to learn with. But if you just want to be able to teleport, without being able to cast your own spells, I can do that.
Okay. Each spell needs a specific destination and its own trigger - I use 'intending to teleport to the place the spell goes to' for mine, but I can do other things. Spells on people don't break; I can make a spell go dormant after a period of time or a number of uses or some other trigger, if you're not completely sure you want it set up a certain way, but it's totally possible to just have it be permanent, that's actually the easiest thing to do.
Yeah, thought so. To here? Does intending to teleport here sound okay for the trigger?
Just me. In theory someone else could find it, but I have traps set up; it'd be really hard for anyone who couldn't teleport to get in, and nobody else knows how.
All right. She closes her eyes. I need to see the mindstate you want to use as the trigger; intend to teleport here, please.
Got it, she reports, and then a few seconds later, done. It won't teleport you to that exact spot; you'll be able to tell if it works if you want to try it.
And she teleports out and spends a few hours gathering firewood and food and medical supplies.
She puts away her new supplies. She eats. She sits and watches him for a little while. She wraps herself up in a blanket and sings to herself, quietly.