Devil's in the Details by Veronica Ford revolves around free will and transformation as Luna's character is developed beyond the pre-set boundaries of Ford's first book, Deals with the Devil, where she is more passive in the magical catastrophes set upon her, relying on the guidance and direction of those around her to solve any problem. However, in book two, Luna develops a greater sense of agency. She embraces her desires, letting go of any inhibitions that hold her back, like her tendency to avoid engaging socially or in magical endeavors, as well as the denial of her true identity and powers.
As the book progresses, Luna's powers grow, due to her rage and, in part, from Dionysius lessening her inhibitions, letting her primal instincts take over. An example is when she runs into the woods at night, hunts/devours a deer, and meets Eostre, a West Germanic Spring Goddess, connected to Luna's past.
Luna progresses her storyline as she chooses to start embracing these wild moments of freedom, and by using that free will, she finally assumes her natural form as the devil/Lucifer and regains her memories. This is a huge moment for readers as it confirms theories of Luna being the devil. We get answers about Luna's previous lives and various ancestors when it is explained that she had been around since the beginning of time as an angel who chose to "fall" from heaven to give humans free will and thus initiate the beginning of history for mankind. Marlowe was one of the first angels who chose to "fall" with her and has always stuck by her side throughout history when she had to give up her memories and live among humans as one of them, as she slowly regained power and the realization of her identity.
The second book drew me in more than the first one because there was more action and evidence of magic this time. For example, the gnome on Luna's porch, Amy being summoned and introduced as an intellectual demon, Luna learning how to conjure things from pockets in the void, and her training with Naasira in combat and sword fighting. All these events made me feel more connected to the magical world and culture that frames the story. I could understand the threats and the different characters of the story better in this magical context. In addition, it was refreshing to see Luna grow, both magically and physically, making her seem more like the strong "chosen one" protagonist that the reader wants to be rooting for.
Ford implants several little easter eggs that can be dismissed, especially if you are not an avid, constantly curious reader who researches every word, idea, or symbol. You can choose, as the reader, to read this book for the plot and experience the winding and seemingly disconnected magical journey Ford lays out. However, you can also take the alternative route and dig deeper, drawing allusions to outside connections that supplement the story, like Cassie originating from Cassandra in Greek mythology with foreboding prophecies, or Walt Whitman's "When Lilacs Last in the Dooryard Bloom’d" poem being used as the prologue and epilogue titles to convey the transformation and grief that Luna experiences. Even Luna constantly seeing the morning star in the sky foreshadows her being Lucifer Morningstar.
I prefer to approach this book more casually, flowing with the plot and slowly putting the pieces together, instead of trying to interpret connections with all the random information inserted throughout. Overall, Devil's in the Details was much more enjoyable to read than book one, sparking more magical beings and a crucial backstory that ties up various loose ends. Luna comes into her own as the devil and ultimate champion of free will for humans as she fights the wild magic leaking from the gate.