Time's up, sleepy time now. Is he mysteriously poison resistant this time? Does she need to [Dispel] him again?

He's not mysteriously poison resistant now. Zz

Next time, he wakes in a shallow cave. It's light out. Cold, but not freezing. Same deal, food and water. Is he thirsty enough to at least drink after more than twenty hours?

There's a force barrier blocking the exit. The temporary runes are painted on the outside of the barrier. Gazi is on the outside this time.

It's a new day; his channels are back.

Oh he'll drink but he'll cover that himself, thanks, he's not touching the provided items.

She didn't know that was a thing he could do! At least it solves that problem. Sleepy time?

Yes, yes, she has demonstrated control over his state of consciousness.

This will repeat a lot of times. Is he going to create or take any food?

Nah, she's not letting him be awake to prepare spells so he's going to save that one on the off-chance that she lets him escape again.

And he's not going to communicate this, or anything, he's just going to slowly starve?

Yup! Unless she asks him any questions in which case he'll repeat that unfortunately he doesn't seem to be in a position to make any appointments right now.

He won't literally die before they get to Reim, which is the important part.

After about two weeks, he will wake someplace different. Well, someplace even more different than the variety of locked rooms, caves, and one occasion a moving carriage during which he's bound to a beam and enchanted(?) not to make any noise.

It's actually gotten kinda hard to register that sort of thing. He's been on short rations, he's gone without both of food and water for a long weekend, but this is his first time he's been this long without eating anything.

He wakes on a bed, in a fairly fancy bedroom. There are large curtains closed over the windows. There's a table with dried fruit and nuts and other snacks, bread and jam, a pitcher of water, a smaller pitcher of juice, and a couple of cups.

There's a note deeply apologizing for the circumstances of his arrival, stating that the situation is still being investigated, and inviting him to make use of the amenities in the room. It's signed the King's Steward.

He's not going to take their food but at this point he'll Create some and start working through that. Carefully. He's heard of refeeding syndrome.