I often draw from the Russian folklore I grew up hearing, and with this particular story wanted to try working with an invented myth rather than an established one. Lake Baikal is of course a real place, and one that’s special and fascinating to me, as I have family living in the nearby city of Irkutsk and visited occasionally as a child. The seals, or nerpa, endemic to the lake are real as well, and though some mystery surrounds them—like how they came to be there in the first place—the queen and her mythology aren’t part of that mystery (not in our world anyway).