"I suppose you think," she burst out angrily, "that you are making a fool of me, and that I don't know it. But I'm not as simple as you seem to believe. I'm perfectly well aware that there's a mystery going on, and that all these elaborate precautions are to keep me out of it."

Dr. Grayle raised his eyebrows. "Then you are much more enlightened than I am," he returned mildly. "I'm really quite at loss to know what you mean, Lady Gardiner."

"In plain words, I mean that you are walking me off my feet to cover the others' escape. You know perfectly well where they are, but they've ordered you to keep out of the way, and you are doing as you're told, like a nice, obedient little man. I never was so abominably treated in my life."

"I can't see, even if Miss Beverly and her two relations choose to go off for a little private sight-seeing on their own account, that either you or I have anything to complain of," said the doctor. "We are outsiders, and are both very well paid for our services. My opinion is that few persons in our position receive as much consideration from their employers as we do."

Kate was so furious at this snub (which found a vital spot) that she was literally speechless for a moment. She would have liked to strike the impertinent little wretch who dared put her on a level with himself; but she could hardly do that, even in Noumea. When the wave of angry blood flowed back from her brain, and she recovered presence of mind, she turned abruptly and walked away from the doctor. But he was at her side again almost immediately, keeping up with her without any appearance of haste, though she quickened her pace in spite of fatigue, looking as cool, as serene, as if he had been taking an afternoon stroll in Bond Street. Evidently he had torn a leaf out of Roger Broom's book; and Kate recalled the forgotten fact that it was Roger who had recommended him to Virginia's notice.

"I beg your pardon," he said, "but you are now going toward that part of the town which was burnt down at the time of the plague here, about three years ago. It is leading you rather out of the way of the hotel, where we were all to meet for luncheon; but perhaps you have a curiosity to see it? I have studied a map of the place, and if you like can point out——"

"I do not like!" Lady Gardiner cut in sharply. "I wish to send a cablegram."

"Unfortunately, that is impossible."

"What! One can't telegraph from this loathsome place?"

"I thought you were so charmed with it? One cannot telegraph to-day."