Gideon the Ninth is the most fun I’ve had reading a book in over a decade. Muir’s style ping-pongs between arch High Fantasy and banal internet memes that may not be everyone’s cup of tea. That said, her ability to craft tight, adrenaline-fueled sequences, unique magic/religious systems, and rich emotional topography should make this a must read for fans of fantasy, sci-fi, or frankly YA romance lit.