Redemption

A letter in blood, a horrifying disappearance… Two boys, brothers, wake up tied and bound in a boathouse by the sea. Their kidnapper has gone, but he'll be back. They cannot escape… In Copenhagen's cold cases division Carl Mшrck has received a bottle. It holds an old and decayed message, written in blood. It is a cry for help from two boys. Is it real? Who are they and why weren't they reported missing? Can they possibly still be alive? He needs to find out, and fast…