Under a Black Sky by Danish author, Inger Wolf and translated by Mark Kline, is currently free on UK and US Kindle.
I believe this to be the sixth book in the Daniel Trokic series however it is currently the only one available in English. Back in 2012, the previous book, Evil Water, was made available as an ebook but I cannot find it available now.
The killer has placed the victims around a table on which there is a doll house with four small dolls and a pile of volcano ashes. However, one person is missing at the table.
The Family’s 11-year-old daughter has disappeared from the house, and a massive search starts. Has she run away, or did the killer take her? Also, what secrets do the family keep?
Inspector Daniel Trokic is sent to Alaska to participate in the investigation. He teams up with the half native detective Angie Johnson, and their hunt for an insane killer and the missing daughter begins.