"Well..I am actually re-reading the series, so I pretty much know what goes on in the story.  I know that later on in the books, you find out that the woman in the first book is not just a normal scientist.  Her father used her and a couple of other girls as a science experiment.  She also has powers of her own.  It definitely has some nice twists in the books.  I, however, am a sucker for romance.  I like how Lily and Ryland team up to find the other girls, because each one is hidden somewhere."