Not going to bother to post at great length right now, partly because I'm not sure it'll even make it up. If I think of anything I wanted to mention at greater length, I'll post it in comments later.
But I'm also not posting much because this is more of a transition chapter - we've escaped from the Carnival, and now we're tidying things up, having the wizard join the unicorn in her travels, seeing maybe a bit more of her inner development, and setting up the next little adventure bit.
It is interesting though that as big a theme as self-deception is, there seems to be some place deep down that is never deceived. Even as the people never recognize the unicorn for what she is on the surface, they remember her long after, or even end up with altered personalities for the rest of their lives.