The most famous treasure of the legendary King Mithridates was considered to be a full-size statue of his horse, cast in gold. But where did this horse disappear to—no one knows. Perhaps the answer is written in an ancient parchment left by the king’s widow, Larisa, to the history professor Stanislav Krasovsky. One of his life principles was: don’t go out to sea in a storm. So when Larisa was told that her husband had crashed on his yacht during a storm, she refused to believe it. And soon her doubts only grew…