"It isn't just the damage that carries over. If something is changed on the buildings - painting, or chalk - we'll see it on the real buildings." She smiles, brief and humourless. "I checked. But writing doesn't seem to work, and it isn't just the size. Whoever set this up didn't want it to be that easy."

She gives the town a hard look, then sighs. "I know one of the people trapped in there well. The others, less so."