" Wow--this book was a huge disappointment! Although many teens and adults enjoy the series, it was way too gory and gruesome for a younger reader. The author should have kept that more in mind. In fact, in the author's acknowledgements at the end, he said that he had originally written the middle portion of the book differently--until the editor suggested he explore who the Styx really are. Bad, bad move. Mr Roderick, next time follow your instincts and go with what you feel the first time. As it is, I can't recommend this book as appropriate for a children's publication. "
— Bryan, 1/16/2014