Literary critic and translator, Irina Vasyuchenko also gained fame as a bright, original prose writer, the author of the stories “Frog in Milk”, “Self-Portrait with an Animal”, “The Art of the One-Sided Executioner” and the novels “The Missing Place” and “Baby” (the latter published in "Text" in 2008).The action of the novel "Blue Shark" takes place at the end of the last - beginning of this century. His hero, a former investigator, and after the revolution - a modest employee, sorting through useless papers, whiles away lonely evenings writing memoirs, recalling the events of his youth - the mysterious story of one investigation, which passionate love prompted him to undertake. Was Miller, his then opponent, an expert and passionate lover of fish, just a criminal, a fanatic who preyed on small children, or did fate confront the young investigator with a creature of a supernatural, diabolical nature? Be that as it may, that long-standing drama seems almost unreal to the aged, seriously ill Altufyev.