What if the characters from folklore are actually living among us—going to work, constantly interacting with us, and we don’t even realize it? What do you do if it turns out your loved one isn’t of the same nature as you? Can you make them human? At the center of the plot is the young mermaid Asso, who, like other magical beings, must spend a year among people and then either return to her own kind—or remain among us forever. An astonishing new world opens before her, full of opportunities and dangers. The heroine will have to grow up very quickly, because she finds herself at the center of several detective storylines at once—each in a different role. And the new acquaintances, it seems, are human too, but they know about themselves even less than she does…