He rose and took her hand.
"We shall meet again, I hope," he said.
"Oh, yes!
Perhaps you will come to Petra?"
"I shall certainly try to do so."
Sarah smiled at him and turned away. Her way out of the room led her past the Boynton family.
Dr. Gerard, watching, saw Mrs. Boynton's gaze shift to her son's face. He saw the boy's eyes meet hers.
As Sarah passed, Raymond Boynton half turned his head - not towards her but away from her...
It was a slow unwilling motion and conveyed the idea that old Mrs. Boynton had pulled an invisible string.
Sarah King noticed the avoidance, and was young enough and human enough to be annoyed by it.
They had had such a friendly talk together in the swaying corridor of the Wagon-Lit. They had compared notes on Egypt, had laughed at the ridiculous language of the donkey boys and street touts.
Sarah had described how a camel man, when he had started hopefully and impudently,
"You English lady or American?" had received the answer:
"No, Chinese," and her pleasure in seeing the man's complete bewilderment as he stared at her.
The boy had been, she thought, like a nice eager schoolboy - there had been, perhaps, something almost pathetic about his eagerness.
And now for no reason at all, he was shy, boorish - positively rude.
"I shan't take any more trouble with him," said Sarah indignantly.
For Sarah, without being unduly conceited, had a fairly good opinion of herself. She knew herself to be definitely attractive to the opposite sex, and she was not one to take a snubbing lying down!
She had been, perhaps, a shade over-friendly to this boy because, for some obscure reason, she had felt sorry for him.
But now, it was apparent, he was merely a rude, stuck-up, boorish young American!
Instead of writing the letters she had mentioned, Sarah King sat down in front of her dressing-table, combed the hair back from her forehead, looked into a pair of troubled hazel eyes in the glass, and took stock of her situation in life.
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?