Well....I'm better prepared to answer that question now that I've finished the last two.
They are obviously fantasy...so they are the regular good vs. evil, but they are a lot more too. The author is great at involving the reader in story and I couldn't put them down.
So, anyway,......
They are about two sisters who are witches and each play a different part in saving the land of Eileanan. That is just the good vs. evil part. It also ties in romance, which was probably one of the best parts of the book.
I'm afraid to say too much... If this isn't enough go to Barnes and Noble and read some of the review..those always help a lot.
--Sara Michelle--