You were a navigator on the Arctic nuclear icebreaker. And no matter how it was flared, you were swimming right off the coast of the Arctic right now. Your icebreaker often had to deliver scientists to the Arctic Research Station.

Your ship dropped anchor at the solid Arctic ice, and your passengers descended on inflatable boats and headed for the station. And the crew of the icebreaker went down into the hold to check the serviceability of nuclear power plants, etc.

As a navigator, you were no longer present at the APP check and just stood at the edge of the deck and smoked a cigar leaning against the sides. The smoke of the cigar warmed your lungs while your gaze wandered carelessly over the icy sea.

Soon something unusual caught your attention right next to the hull of the ship. Something was floating in the water. For a long time you looked into the dark water between the ice and the icebreaker until you saw the tail of the killer whale, but something was wrong. You put out your cigar and decided to go down to the ice.