Before Billie could see any more other than that the surgeon was small-featured in striking contrast to the robustness of her body, she stepped from the room. A moment later an automatic elevator took her to a lower floor, where she was greeted by a person whom Billie assumed to be a head nurse.

"Anything out of the ordinary, surgeon?"

"No," with a bruskness which was startling by comparison with her cheeriness upstairs. "I understand that Dr. Norbith wishes to go home as soon as possible?"

"Yes."

"He may go as soon as the cast is hard. Make sure his machine is a smooth one."

The nurse simply nodded as the surgeon stepped on, through a very ordinary pair of sliding doors, and so on out into an anteroom and thence to a porch, where she stood looking into the street for a moment.

It was exceedingly broad, and lined on both sides with imposing structures whose architecture was entirely strange to Billie. She would liked to have examined them all in detail; but she had no control over her agent, who straightway walked down a short flight of steps and thence to a sidewalk.

Here Billie became perfectly willing to neglect the architecture. People were coming and going; people apparently quite as human as herself. Except for a certain gorgeous voluminousness of dress, they seemed for the most part simply men and women of affairs.

For it was comparatively easy to distinguish the sexes. The women's garments, while not making any display of the strictly feminine lines, nevertheless did not attempt to disguise them. Billie saw that loose breeches had completely displaced the skirt with these women; while the men invariably wore either knickerbockers or some other form of short trousers; so that the general effect was very youthful. She saw no men with beards, although several wore their hair long, down to their shoulders, as though to compensate for those women who chose to wear theirs short.

The surgeon seemed to have more leisure than most doctors. She stood for some minutes, greeting perhaps a score of passers-by, all of whom seemed to be proud of the acquaintance. Presently, however, the sidewalk became temporarily clear of pedestrians; and then Billie heard the surgeon mutter something to herself, such as was past all understanding at the time: