These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Twelve Houses
Anvilicious: The message of these books? Don't discriminate against anyone. Especially not minorities who live as second class citizens in the south-eastern part of your massively powerful country which could could kick the ass of all its neighbouring countries, and occasionally does. Racism is baaaad, kids.
Ensemble Darkhorse: Donnal. You hardly notice him in the first book, but his part grows subtly throughout the second.