The dead don’t talk - unless you know how to listen. In Reykjavík, an old man is found murdered with a cryptic note left on his body. Detective Erlendur begins unravelling a decades-old case that never closed. As he follows a fascinating trail of strange forensic evidence, Erlendur uncovers secrets that are much larger than the murder of one man - dark secrets that have been carefully guarded for many, many years... ‘A chilling Icelandic saga of the DNA age’ Independent ‘A fascinating window on an unfamiliar world as well as an original and puzzling mystery’ Val McDermid