The first in an exciting new series from ´Iceland´s outstanding crime novelist´ (Daily Express) Yrsa Sigurdardottir, winner of the 2015 Petrona Award for best Scandinavian Crime Novel.The murder was meant as a punishment - but what sin could justify the method?The only person who might have answers is the victim´s seven-year-old daughter, found hiding in the room where her mother died. And she´s not talking. Newly promoted, out of his depth, detective Huldar turns to Freyja and the Children´s House for their expertise with traumatised young people. Freyja, who distrusts the police in general and Huldar in particular, isn´t best pleased. But she´s determined to keep little Margret safe. It may prove tricky. The killer is leaving them strange clues: warnings in text messages, sums scribbled on bits of paper, numbers broadcast on the radio. He´s telling a dark and secret story - but how can they crack the code? And if they do, will they be next?