Meanwhile the girl walked slowly back towards the Café Royal, and, with a quick glance at the men who were standing there, entered. One or two of the men raised their eyebrows; but the girl was quite unconscious, and went on her way to the luncheon-room.

"American, you bet," said one of the loungers. "They'll go anywhere and do anything."

Just in front of her as she entered was a tall, clean-shaven man, faultlessly dressed in glossy silk hat and frock coat, with a flower in his button-hole. He looked around for a moment in search of a convenient table. As he hesitated, the girl hesitated; but when the waiter waved him to a small table laid for two, the girl immediately sat down behind him at the next table.

"Excuse me, madam," said the waiter, "this table is set for four; would you mind——"

"I guess," said the girl, "I'll stay where I am." And the look in her eyes, as well as a certain sensation in the waiter's palm, ensured her against further disturbance.

The restaurant was full of people lunching, singly or in twos, in threes and even larger parties; and many curious glances were directed to the girl who sat at a table alone and pursued her way calmly through the menu. But the girl appeared to notice no one. When her eyes were off her plate they were fixed straight ahead—on the back of the man who had entered in front of her. The man, who had drunk a half-bottle of champagne with his lunch, ordered a liqueur to accompany his coffee. The girl, who had drunk an aerated water, leaned back in her chair and wrinkled her brows. They were very straight brows, that seemed to meet over her nose when she wrinkled them in perplexity. Then she called a waiter.

"Bring me a sheet of notepaper, please," she said, "and my bill."

The waiter laid the sheet of paper before her, and the girl proceeded, after a few moments thought, to write a few lines in pencil upon it. When this was done, she folded the sheet carefully, and laid it in her purse. Then, having paid her bill, she returned her purse to her dress pocket, and waited patiently.

"SHE WAS LOOKING INTO THE MIRROR AND PATTING HER HAIR."