Historical fantasy for kids and adults

In the late 17th century Russia, a dark magician arrives at the capital in search of the ultimate power hidden within the Magic Worlds, the entrance to which is located inside the Sukharev Tower and is tightly guarded by Jacob Bruce, the Wizard of Balance. When Jacob's apprentice Petya and daughter Margarita accidentally rip apart the ancient manuscript that is the source of his powers, they must venture into the Magic Worlds to restore it.