There was already a wall around the property before the fall; all we had to do was close off the gate, first with boards and then with concrete. Now the only way in or out is via the ladders.
For the kids the school grounds are the whole world. They hear us talking about the city and airplanes and department stores like we’re telling faerie stories. I have to wonder if they’ll ever really believe it all, if they’ll ever really understand what we’ve lost, and what they’ll never have. Somehow, I doubt they will: it all sounds so implausible.