Steampunk Supernatural Nick and Nora meets Indiana Jones in Victorian England. There's a plot twist related to the health of one of the characters, and you see it coming, and it feels like the author is trying to hide it, so you let it go--and then everything turns around on you because in the final chapter a character behaves shockingly when faced with the health issue and the author is brilliant for hiding this real twist, which made me gasp aloud, within the obvious one.