She was beyond middle age, plainly in poor health herself and everlastingly on the verge of collapse from weakness and exhaustion.

Her will kept her on her feet.

The second was a professional nurse from one of the university towns--from Bonn, I think.
She called herself Sister Bartholomew, for the German nurses who go to war take other names than their own, just as nuns do.

She was a beautiful woman, tall and strong and round-faced, with big, fine gray eyes.

Her energy had no limits.