She had just passed through a difficult emotional crisis. A month ago she had broken off her engagement to a young doctor some four years her senior. They had been very much attracted to each other, but had been too much alike in temperament. Disagreements and quarrels had been of common occurrence. Sarah was of too imperious a temperament herself to brook a calm assertion of autocracy.

Like many high-spirited women, Sarah believed herself to admire strength. She had always told herself that she wanted to be mastered. When she met a man capable of mastering her she found that she did not like it at all! To break off her engagement had cost her a good deal of heart burning, but she was clear-sighted enough to realize that mere mutual attraction was not a sufficient basis on which to build a lifetime of happiness. She had treated herself deliberately to an interesting holiday abroad in order to help on forgetfulness before she went back to start working in earnest.

Sarah's thoughts came back from the past to the present.

"I wonder," she thought, "if Dr. Gerard will let me talk to him about his work? He's done such marvelous work. If only he'll take me seriously . . . Perhaps—if he comes to Petra—" Then she thought again of the strange, boorish young American.

She had no doubt that it was the presence of his family which had caused him to react in such a peculiar manner, but she felt slightly scornful of him, nevertheless. To be under the thumb of one's family like that—it was really rather ridiculous—especially for a man! And yet . . .

A queer feeling passed over her. Surely there was something a little odd about it all?

She said suddenly out loud: "That boy wants rescuing! I'm going to see to it!"

3

When Sarah had left the lounge Dr. Gerard sat where he was for some minutes. Then he walked over to the table, picked up the latest number of Le Matin and strolled with it to a chair a few yards away from the Boynton family. His curiosity was aroused.

He had at first been amused by the English girl's interest in this American family, shrewdly diagnosing that it was inspired by interest in one particular member of the group. But now something out of the ordinary about this family party awakened in him the deeper, more impartial interest of the scientist. He sensed that there was something here of definite psychological interest.

Very discreetly, under the cover of his paper, he took stock of them. First, the boy in whom that attractive English girl took such a decided interest. Yes, thought Gerard, definitely the type to appeal to her temperamentally. Sarah King had strength—she possessed well-balanced nerves, cool wits and a resolute will. Dr. Gerard judged the young man to be sensitive, perceptive, diffident and intensely suggestible. He noted with a physician's eye the obvious fact that the boy was at the moment in a state of high nervous tension. Dr. Gerard wondered why. He was puzzled. Why should a young man whose physical health was obviously good, who was abroad ostensibly enjoying himself, be in such a condition that a nervous breakdown was imminent?