Written as a textbook for living into and out of innate desires instilled by God. Well done.
Like Riordan's prior Greek and roman novels, this captivated me and I finished in a day and a half (I teach 7th grade and have three kids of my own, otherwise one sitting would have finished the book), however, my one qualm is the bringing back of other heroes in the end; felt a little thrown in. Will still read again with my kids when we get through the first two sets reading out loud