He shook his head obstinately, and sat down on the chaise-longue beside her, deeply dispirited, yet with a look of concentrated purpose.

"I'm not ready to give up," he said slowly. "Not just yet, there's too much to do. However, if it's any satisfaction to you to know, I took my temperature just now to make sure, and as I thought it was a bit lower than it was this time yesterday, I am inclined to think I'm over the worst of this."

"I don't see how you can be; you look very ill indeed," sighed his aunt. "You are only keeping about from sheer will power, and I'm afraid you'll pay for your stubbornness later on. Tell me, though," she went on, slightly lowering her voice. "Is there any news of her?"

He shook his head and drew a long discouraged breath.

"None whatever; not a word, not a sign. It is most mysterious. I've done everything I could think of. There may possibly be a pension or two I haven't discovered, but even so it's very odd that not one of the taxi-drivers in Cannes can recall taking a fare on Tuesday afternoon that answers her description. I've investigated it thoroughly."

"Don't you think the driver may have forgotten?"

"Most unlikely. It was sufficiently odd picking up an American girl in the street with her luggage, to say nothing of the broken-down car; the circumstances were unusual enough to impress themselves on a man's memory for a couple of days at any rate. I have even looked up two chauffeurs who were home ill, but it was no good."

"It is indeed most odd! Have you done anything else?"

"Yes. I've seen the police and reported her as missing."

"Oh!"—in a shocked tone—"Do you consider it as serious as that?"