Esther knew the name, her book had told her that the doctor paid regular visits to a Lady Clifford. She turned up the visits for the next day. Yes, there it was, Thursday, Lady Clifford, 11.30.

She heard the doctor's heavy step on the stairs, so she hastily replaced the crisp white coif she had removed a moment ago and repaired to the salon. A slender woman was standing at the window looking out and tapping her foot with nervous impatience. She was smartly dressed in black, with a magnificent silver fox about her shoulders.

"Will you come this way, please," said Esther. "The doctor will see you."

The woman turned suddenly and Esther received a shock of surprise. It was the blonde woman of the Restaurant des Ambassadeurs. As she was French it had never occurred to Esther to connect her with the unknown Lady Clifford. For a moment she felt self-conscious, afraid lest the beautiful patient should recognise her. But no, there was no need for alarm, the Frenchwoman passed her with a brief, incurious glance. Probably on that former occasion she had never noticed Esther at all, or if she had, the nurse's uniform was sufficient to effect a complete alteration. Who was this exquisite creature, French, but with an English name? All Esther's curiosity returned in full force.

Dr. Sartorius stood, heavy and uncompromising, beside the flat mahogany desk. He scarcely took the step forward which courtesy demanded. Surely his manners were the least ingratiating Esther had ever known in a professional man!

"Forgive me, doctor, for coming like this," the patient began impulsively. "But to-morrow morning I find I cannot be at home, and I do hate to miss my piqûre!"

"Very well, you can have it now."

That was his grudging response to an appeal full of winning charm.
Women and their fascination had evidently no part in his life.

"Ah, that is good of you! It puts strength into me—and I have need of all my strength. I"—she paused to moisten her lips—"I wish also to have a word with you again about my husband."

"Oh?"