Behind the Birch Books

The tireless seekers set out on their journey again. The hope of finding the ancient birch books from the legendary library of the Rostov prince Konstantin the Wise lures them on the road. On the birch bark pages of the birch books, poems and tales created even before the Tatar-Mongol invasion were scratched with a sharp capercaillie bone — priceless treasures of ancient Russian literature...