On February 21, fires will be lit all over Northern Frisia, the so-called "Biiken". It's an old custom, revived in the late 20th century and nowadays popular as an event to attract tourists in the off-season. Originally it probably marked the end of winter.
The mystery starts on the day of the Biikebrennen, when in the tiny city of Runeesby a body is burnt in the pyre. The police officers uncover a nasty tale of racism in the countryside. The plot is decent and adequately handled, the author has done his research and shares it with the reader mostly in the conversation between the two detectives, which I always find a clumsy device. People do not talk like this, especially when it's information they should know. Nothing remarkable, neither in a good or a bad way. ( )