What is "chernevog"

Chernevog is a fantasy novel by American science fiction and fantasy author C. J. Cherryh. It was first published in September 1990 in the United States in a hardcover edition by Ballantine Books under its Del Rey Books imprint. Chernevog is book two of Cherryh's three-book Russian Stories trilogy set in medieval Russia in forests along the Dnieper River near Kiev in modern-day Ukraine. The novel draws on Slavic folklore and concerns the fate of a girl who has downed and become a rusalka. It is also an exploration of magic and the development of a young wizard.

Cherryh self-published a revised edition of Chernevog in e-book format in March 2012 at Closed Circle Publications. Authorship of this edition is credited to C. J. Cherryh and Jane Fancher because of Fancher's contributions to the revisions.