The woman was still unconscious. She was too young to be Maddy, yes, and a bit too tall as well, but still, it was almost like having a ghost on the sofa. As the afternoon advanced, the line of sun from the window moved across the woman’s shoulder and Lily spotted a scar there, just above the collarbone. Lily had a scar in the same place, a neat surgical line from having her tag implanted when she was young. But this scar was much more noticeable. It was not the thin, pristine line that a laser would leave. It looked as though it had been done with a scalpel.