I thoroughly enjoyed this book. Nothing overly original about the concepts - traditional "whodunit" mixed with mythology and ancient gods who still walk the earth today. But I have a very big soft spot for Greek mythology. Plus, there were some new details that really made it special - strength remaining or dwindling based on a god's role (Nike and Hermes and Dionysus still have lots of "worshippers," while Demeter and Hestia and Artemis have less) and the translation of what those roles are today (wealth for Hades, planes/trains/cars for Hermes). Also, the exploration of a certain telling of the story of Orion and Artemis and a reconstruction (based on the limited knowledge we have) of the Eleusian Mysteries was really interesting and nicely crafted. The pacing was great as well. Also, I enjoyed the idea that the gods, though they ruled the mortals, were who/what they were and had the powers they had because of the stories created by the mortals themselves. A circle with no beginning or end. And how, in the end, Artemis chooses to stay Selene because she wants to be able to have her feelings and create her own memories, to have power over herself, instead of just power. An incredibly interesting concept. I definitely am interested in reading future installations of Artemis and Theo and the rest of the Olympian pantheon.