What is the boy's life like at the camp? (Chapter #3)

The boy, his mother, and his sister live in one room. He has been given numerous instructions by his mother; never touch the fence, never talk to the guards, never to stare at the sun and never say the emperor's name out loud. While living in the camp, the boy often feels guilty about his father's arrest, and he spends each day waiting for letters from his father to arrive.