This first installment of the Scrapped Princess series of novels describes the events that occur before the start of the anime with the same name. The same characters as the anime are annoying (I.E., Pacifica), Rachel is still the cool, dizty, motherly older sister, and Shannon is still the loudmouth who says what he means.
Truthfully, I'm not too impressed by the first novel. Its reading level is not all that high (though whether the original Japanese was the same read or if it's a translation issue is one I don't know), and, more importantly, I does a real poor job of world building as it really only deals with the siblings life and troubles after the death of their father. Hence, features about this universe can be rather confusing to a green reader. Even worse, the book has a bad tendancy of over-explaining magic and weapons, much like a real anime. It is a rather short read, which might get expensive with the books at $8.00 per volume with 7 or 8 volumes.
I'm not sure if this is a novel based on the anime, or the anime was based on this novel. Then again, the anime wasn't anything all that great either, though it was a fun watch. Maybe the novel will turn around and be fun in the next installments.