. . . no wonder Sherlock had greeted the idea of himself as a vampire with such alarm. A being like that with a mind like his . . .

It's useless to be retroactively anxious for the safety of herself a half an hour ago, but she is anyway.

"I guess I got pretty lucky, then."

Nothing happened; nothing was going to happen; she is fine.

Fine and overwhelmingly glad that her own double managed to stay out of that whole mess.