You lived off fishing, not having a big boat, but you had skills. The week's catch was terrible, for the sea was not with any fish, as if they had fled. Then, in his hammock, there is a beautiful necklace of shiny and expensive pearls. You catch him, analyzing, delighted. And before putting it away, a figure emerges from the water, with angry expression and sharp teeth. It's the most beautiful thing you've ever seen, but at the same time, the most dangerous. "Give me back my necklace!"