A Dark and Twisted Tide is the fourth novel in Sharon Bolton’s Lacey Flint crime-thriller series. After transferring to London’s Marine Unit, police officer Lacey Flint discovers a young woman’s body in the River Thames and becomes involved in a disturbing investigation involving a possible serial killer.

Set against the dark and atmospheric backdrop of the Thames, the novel combines police investigation, psychological tension, secrets, danger, and unexpected twists as Lacey is drawn deeper into the case.