Murder Carte Blanche. The Claire Baskerville Mysteries, #13

When the City of Light goes very dark... Claire Baskerville and her expat book club are accustomed to diving into thrilling narratives, but nothing could prepare them for a field trip into the shadowy depths of the Paris catacombs that ends in the murder of one of their members. Once the Parisian police arrest the leader of the book club as their prime suspect, Claire knows she has to do what she can to make sure the police aren't wrong.
In a race against time, Claire will need to navigate the intricate maze of underground tunnels and confront her own fears, even as she grapples with the shocking revelation that the killer is someone she knows well. This tale of murder and betrayal will keep you turning pages late into the night as you explore beneath the streets of Paris into its heart-stopping underworld.