Agrafena and Brotherhood of Talking Cats

Adventures begin!
Hello! I am Agrafena, an ordinary girl from an orphanage in a white mane. Like many children, I got here after the war in the empire. Life flowed on its turn - the commandant of Smotilda rushed with its revolvers, we stole cucumbers from the rural elder and sometimes tried to get rid of the collars who prevented him from taking away the shelter forever. In general, like everyone else.
But then everything went somersault.
First appeared a cat. And well, it would just have appeared. But he said! And not just spoke, but sarcastically and ulzil. He also stole sandwiches with sausage at our cook. And he asked to help his brotherhood find some magical book of a long-dead witch.
Then Imperial sorcerers suddenly appeared - the Esselites who were looking for all the shelters of the child, the unquired of their magic. Still would! After all, he can change the fate of the empire.
I wonder who could it be?