Had she needed proof of the truth of her sad discovery it had been enough to point to the single fact that her father had brought her here to this little island without making the slightest attempt to explain the nature of his expedition. She had gleaned enough from von Horn to understand that some important scientific experiments were to be undertaken; but what their nature she could not imagine, for she had not the slightest conception of the success that had crowned her father's last experiment at Ithaca, although she had for years known of his keen interest in the subject.

The girl became aware also of other subtle changes in her father. He had long since ceased to be the jovial, carefree companion who had shared with her her every girlish joy and sorrow and in whom she had confided both the trivial and momentous secrets of her childhood. He had become not exactly morose, but rather moody and absorbed, so that she had of late never found an opportunity for the cozy chats that had formerly meant so much to them both. There had been too, recently, a strange lack of consideration for herself that had wounded her more than she had imagined. Today there had been a glaring example of it in his having left her alone upon the boat without a single European companion—something that he would never have thought of doing a few months before.

As she sat speculating on the strange change which had come over her father her eyes had wandered aimlessly along the harbor's entrance; the low reef that protected it from the sea, and the point of land to the south, that projected far out into the strait like a gigantic index finger pointing toward the mainland, the foliage covered heights of which were just visible above the western horizon.