The winter of the witch
(Book)

"Now, in the conclusion to this powerful trilogy, Moscow has been struck by disaster. Its people are searching for answers--and someone to blame. Vasya finds herself alone, beset on all sides. The Grand Prince is in a rage, choosing allies that will lead him on a path to war and ruin. A wicked demon returns, stronger than ever, determined to spread chaos. Caught at the center of this conflict is Vasya, who finds the fate of both worlds resting on her shoulders. With her destiny uncertain, Vasya must uncover surprising truths about herself and her history as she desperately tries to save Russia, Morozko, and the magical world she treasures. But she may not be able to save them all"--,Provided by publisher.