About the book: year / Cargo ships are sinking one after another in the northern seas, and the elusive enemy evades retribution each time. Rumors about the Thunder of the North spread across the Arctic and become overgrown with legends, and a cult arises in the cities, worshiping a mysterious creature from the depths. We need to put an end to the threat before it puts an end to the Northern Sea Route and raises a wave of panic, but first we need to understand what we had to face.