From the creator of Silent Mobius comes a Steampunk mystery that dares to explore a world that might have been. In an era of Steam, where masked dandies, dastardly supervillains, and sentient machines reign supreme, a Japanese Gotham is haunted by darkness even in the brightest hours. But as evil grows bolder and more menacing with each passing night, it's up to the dashing detectives Narutaki and his talented assistant, Ling Ling, to uncover the mysteries shrouding this strange land. Will they outsmart the Phantom Knight, the Machine Baron, and Dr. Guilty? Or will they meet their doom at the hands of these nefarious foes? With so much at stake, Narutaki and Ling Ling must use their sharp wits, quick reflexes, and unbreakable bond of friendship to stay alive and win the day. All steam ahead!