I was annoyed as usual with the historical inaccuracies in this series, primarily focused on the Celts this time, but I'm not going to go into the complete misrepresentation of druids. Anyway, this book is set up as two parallel stories of deciding between good and evil. Both Fieran and Matthew Fier choose evil, and both end up in a sorry state because of it, as does Emily, practicer of the "dark arts." I am, by the way, thoroughly sick of the term "dark arts," which are some sort of thing Stine has made up involving lots of blood and gore. ( )