She takes her time thinking over the question.  She “hmms” a bit to make it clear she’s thinking.

“We aim to arrive while the convention is still going for the day, so we’re only late, not missing entirely.  We let our age show a bit.  We go early enough we can get out of the city well before sundown is the city is still in chaos.”

Stating her plan out loud means he can use it as an excuse to blame her, but the plan to leave was his in the first place, so she figures they are in it together.

"Maybe we wait a day- Rain's still pretty bad. Roads might be in too much mud for travel. I imagine plenty of important folk are busy today too, no need to bother them quite yet."

Two people who don't really know each other, united in wanting to stay below notice. As it should be, really. He wonders what his wife is up to, and suppresses his sudden rush of annoyed speculation.

“How patient do you think the wizards will be?  They gathered all of us they selected by lots in only a few weeks, I figure they can regather any of us at least that fast, so I wouldn’t want to chance more than a day or two.”

"One day. We could always settle the horse's ownership and go our separate ways, mind. I just like the idea of having another sortition delegate around, we've both got good reason to watch each others' backs and not do anything rash."

She nods at that and spends several moments thinking before replying.

“One day seems a safe hedge.  I figure us sortition delegates are in this together right?”

Unless they want one of them to accuse the other, but she’s not going to be the first to bring that up.

"More than your average noble is, at least."

She nods again.

“I assume the Sowers of Erastil here at the convention are probably fine people, but I haven’t yet talked to any of them yet.”

"We had to make do with an Asmodean. Nobody complained when he stopped showing up. Folk watching out for themselves is the simplest way, but it can go wrong all too easy, too."

He gives her an assessing look.

"My goal for the convention- Aside from making it out alive and with coin in my pocket- Is to inconvenience the cityfolk as much as possible. Make them at least say so openly when they're hoarding power and authority all to themselves, for 'the good of all'. The Queen and nobles are going to end up in the same place as before, obviously, but- The archmage president wants them to have trouble, I think. We're an instrument of that. And at least getting paid well."

A fragile instrument may break when put to use, but she doesn’t want to argue with him or reveal her own position too much.

“I suppose I can see the sense in that.  Are the archmages teleporting us back when this things done? I suppose I wouldn’t mind doing some minor inconvenience to people too far from me to come after me.”

She’s decided she won’t mention her home county out loud so that no one has any way of tracking her down after the convention (other than whatever it was the archmages did in the first place to find her). 

Yep, no further pushing than that. It's just his own simmering anger against the rich that pushed him to say that much.

"I can imagine them just forgetting about it. We'll see when we see, I suppose."

She nods.  They’ll probably forget the quietest ones like herself first, so she might manage to live through it after all and not get killed afterwards.

That's about that for their conversation, then.

He doesn't like sitting idle. He asks their barn-owning hosts for chores to do. They look at him with suspicion, but one mentions that their cistern needs filling from the well. No pay, obviously, except a piece of stale bread. It's better than just sitting there.