Sally Delavega, the best demon-binder the world has ever seen, would do anything to banish the two hundred ghosts trapped in his head-even if it means swimming up from the bottom of his tankard. When the Navy that destroyed his life comes sailing back to offer enough coin to get the job done, Sally agrees. All he has to do is help the crew of the Steadfast track down the ancient abyssal that lies sleeping at the heart of their drowned world. Why the Navy wants the demon isn't Sally's problem. But as they sail on, Sally begins to dredge up disturbing truths about how the world flooded and their ancient eldritch quarry that might just want to be found...

Imaginative and poignant, funny and bizarre, Demon Engine brings us a bold, queer high-seas adventure that asks how deep we might venture for what we aren't willing to lose.