She wasn't sure, honestly, how she'd tell whether the change had happened - but when it does, it's immediately obvious. This really is a different person, despite all appearances.

Ari tilts her head. 'Did his plans involve being imprisoned in a cell? Because if so, I think these ones are much better.' Alright, that'll take a little more explanation. 'I refused to lock myself in with him, so we ended up here instead. He was explaining the situation to me, and I'm convinced that he is Palamedes Sextus, but I wanted to verify with you that you're here, and that he is sharing your body with your knowledge and consent.'

That sounds bizarre, put like that, but it's the truth of it. 'I'm aware that we have limited time here. I'm also inclined to trust the Master Warden - on matters that don't involve locking myself up, at any rate - but he thought it might be better if I heard an explanation of how all this happened from you, instead.'

There. Comprehensive, quick, and as far as she's able, to the point.