Castleview Redux

Okay... Having now reread CASTLEVIEW under somewhat better circumstances (i.e., at home, not lacking massive quantities of sleep, etc.), I'm still puzzled by the puzzlement. In some ways, this seems to be one of the most straightforward things GW has written -- an account of some mortals caught up in the affairs of Faerie, one of whom turns out to be the brother of the Faerie Queen. Most of the "Huh? What's going on here" sequences strike me as (in retrospect) glamours -- mortals facing faeries see a combination of what they expect and what the faeries want them to see. The only major puzzles I think left by the book's ending are whether certain characters are mortal or fay. So what's the problem here?

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Does that mean you can answer all, many, or even some of the long list of questions I posted a few weeks ago? The ever-optimistic, Spectacled Bear.