Chernava

In Russian folklore, Chernava (diminutive: Chernavushka; Russian: Чернава, Чернавушка) is Sea Tsar's daughter (or, according to some versions, a niece), spirit and personification of the river of the same name.

Chernava is famed from her appearance in the epic of Sadko.

She is described as small, scrawny, and young girl who works as a servant in the palace.

When Sadko was asleep, Chernava had transformed into a river, helping him to get into the human world.

Sadko woke up on the shore of the river Chernava and rejoined his first wife.