Koshka: Book Two of the Dobrynia Chronicles

When Olga dies, the emerging Kievan state is thrown into disarray. Sveneld in Kiev and Dobrynia in Novgorod lead two armed camps which threaten to break out into open warfare at any time. Prince Sviatoslav, Olga’s son, and his warrior commander Koshka, Dobrynia’s sister, maintain a hostile distance in the far south.

This is Book Two of a series about the rise of Vladimir the Great under the tutelage of his uncle, Dobrynia.