A shortish audiobook (An Audible original) at just over 3 hours. It's a prequel to the Carnival Row TV series, and tells the story of Tourmaline Larou and Vignette Stonemoss in the days before the war against the fae. It's a story of love and regret. The narrator, Karla Crome, does a good job, but this is a slight story for completist fans of the TV series.