His eyebrows raise, in faint surprise and stronger concern. "You suffer from some disorder of the blood, then?"

If so, she's a cool hand about it. Her obvious expertise speaks to some scientific, if not medical expertise, too. And that's interesting. Medical colleges that admit women are not the norm, but they do exist. Occasionally, professionally, he has run into women who are doctors, even in his own time. Few of them are so... upper class, of course.

"You obviously know what you're speaking of," Watson remarks. "Is your background medical or scientific?"