In this seventh part of the series dedicated to her, Erica Falck is on all fronts. Not content with taking care of her twin babies, she investigates the island of GrÞaskar in the FjÞallbacka archipelago, and strives to support her sister Anna, the victim, at the end of "The Mermaid", of a terrible car accident with dramatic consequences. With “The Lighthouse Keeper”, Camilla LÞackberg brilliantly continues the most endearing detective series of the moment.