This book is a great disappointment to me ... Of course I did not expect to find a way Mankell Wallander and I was eager to know what the master of the Swedish thriller would propose. But this reading has proven to be a big trouble and I had to force myself to go after. The hero, hydrographer of the Swedish navy during the First World War is responsible for drawing new sea routes by probing the depths of the sea to determine possible passages. But it is especially in the depths of lies and manipulation that takes us. And it was long follow all thoughts of a character as devoid of empathy for others, and having a vile behavior. This added to a rather contemplative and descriptive novel, reading quickly becomes heavy. the end is a bit more interesting but globally; how boring!