I wonder, actually, if the Dragon Users' excerpt Asa read was Makio's own way of coping/sublimating her grief at the death of her father (which, I realize, would be Asa's grandfather)? Which would be ironic, since Makio stated in Chapter 24 that she felt nothing for the death of her father.
I wonder also if the Dragon Users series is a companion series to the Magic Users, or if it is it's own individual, self-contained series?