Boys Who Hurt

Boys Who Hurt is the fifth book in the Hidden Iceland series by Eva Björg Ægisdóttir and, in my humble opinion, is the best in the series to date. It's certainly my favourite.
Murder, links to an historical crime, police corruption, physical abuse of children, secrets and lies. All of these are recurring themes in the book, and make for chilling reading. Setting the story in the run up to Christmas just adds to the atmosphere. The plot is complex and intricately woven. It took me a while to figure out who the killer was. That's the mark of a great book, in my opinion.
I adore this series, and I'm already looking forward to the next book.