The expression on his face shifts through several emotions, for once all genuine: confusion, as she pulls out the knife; surprise, first for her cutting herself with it and then for the way the wound knits back together; and then--and worst of all for Adam--uncertainty at what she says.

"You didn't know, for me," he echoes. "You couldn't have; there was no way to tell until I was wounded, I'm careful to hide it."