Her daughter wakes her up: “Someone is in the house.” Elisa sits up in her bed, heart pounding in her chest … It’s freezing in Iceland. It’s not just the weather, when a ruthless killer is on the loose.

If you have the courage, and if you are drawn to violence and merciless evil, this is the book for you.

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A woman is brutally murdered in her home in Reykjavík. The only witness is her seven-year-old daughter, who hides under the bed, as the atrocity takes place.

When another woman, shortly after, is killed in the same manner, the police suspect one perpetrator to be behind both murders. But nothing else. There are no leads, he makes no mistakes, but he leaves strange, encrypted messages, which neither the police nor Interpol seem capable of deciphering.

Shortly after, a lone, young, amateur radio host receives an odd, chilling message, that ties him to both victims. He recognises his social security number, and curious, he decides to investigate the case himself. He should not have.

DNA is the first book in the series about detective Huldar and psychologist Freyja. Huldar and Freyja are both decent, trustworthy people, each with their own flaws and their own skeletons in their closets, which makes you feel like you know them, and you understand why they act the way they do. For every new place the story takes you, another twist is introduced, which leaves you gasping for breath and will make your skin crawl.

DNA received the Palle Rosenkrantz Prize for Best Crime Novel in 2014 – amply deserved. Yrsa Sigurdardóttir is simply unrivalled as a crime novel author.