Newly promoted, out-of-his-depth detective Huldar is struggling to solve the murder of Elisa.
The only witness is her seven-year-old daughter Margret, who was hiding under the bed when the killer struck.
But she’s traumatised and won’t say anything. Freyja, a psychologist from the Children’s House, is called in to help.
The killer is leaving strange clues in the form of cryptic text messages and strings of random numbers.
Can they keep Margret safe and crack the code before he strikes again?
This is another tour de force from Sigurdardottir and is sure to cement her reputation as the queen of Nordic noir.
Her writing is evocative and fraught as she skilfully ratchets up the tension and fear.
A cracking read that will keep you guessing until the very last page.