Audiobook Darkness Calls: An Inspector Cecilie Mars Thriller, written byMichael Katz Krefeld. Late one night, newly promoted Inspector Cecilie Mars makes a fatal choice that has far-reaching consequences. Her misstep has been captured on film, and now an anonymous figure threatens to reveal everything unless she follows their cunning plan. Drawn into a sinister scheme involving blackmailing and vigilantism, Cecilie is forced to consider just how far she is willing to go to ensure justice.