The Keeper of Lost Causes (US) or Mercy (UK) is a book written by the Danish writer of crime fiction, as well as a publisher, editor and entrepreneur Jussi Adler-Olsen in 2007. Its original title is Kvinden i buret.
Being a fan of Scandinavian authors and thrillers, when my boyfriend gave me this book, I started reading it at once. And I loved it. Indeed, The Keeper of Lost Causes is the first book of a whole series and its author won a great number of literary prizes for it : the Sealed Room Award (Japan 2012), the Livre Robinsonnais prize (France 2012), the Grand prix des lectrices de Elle (France 2012), the Barry Award Best Novel (US 2012), the Danskerees Yndlingsforfatter (Denmark 2013), the Prix Plume d’or (France, 2013) and many more..
That should be enough to convince you to try it ! Personally, I’m already reading the sequel The Absent One (US) or Disgrace (UK) (Fasandræberne in Danish).