He must be having a really rough time right now, then.

[She winces a little. All they have is swimming right now— or very slow walking against water resistance, if that's what he really preferred.]

I might be able to help with that, although I don't know for sure. The powers Astoria gave me let me cast spells depending on the terrain, so maybe something to help him move through the water a little more easily? That would definitely draw attention, though, so maybe we should keep thinking of other options as far as infiltration... oh! I met someone at the library who might do well here. Do you know Noctis?