At that moment Joan seemed to become aware of his presence; at any rate, she wheeled round quickly, and they were face to face.

She started and blushed—perhaps more violently than the occasion warranted, for Joan was not accustomed to meet strange men of his class thus unexpectedly. Captain Graves scarcely noticed either the start or the blush, for, to tell the truth, he was employed in studying the appearance of the loveliest woman that he had ever beheld. Perhaps it was only to him that she seemed lovely, and others might not have rated her so highly; perhaps his senses deceived him, and Joan was not truly beautiful; but, in his judgment, neither before nor after did he see her equal, and he had looked on many women in different quarters of the world.

She was tall, and her figure was rounded without being coarse, or even giving promise of coarseness. Her arms were somewhat long for her height, and set on to the shoulders with a peculiar grace, her hands were rather thin, and delicately shaped, and her appearance conveyed an impression of vigour and perfect health. These gifts, however, are not uncommon among English girls. What, to his mind, seemed uncommon was Joan’s face as it appeared then, in the beginning of her two-and-twentieth year, with its curved lips, its dimpled yet resolute chin, its flawless oval, its arched brows, and the steady, tender eyes of deepest brown that shone beneath them. For the rest, her head was small and covered with rippling chestnut hair gathered into a knot at the back, her loose-bodied white dress, secured about the waist with a leather girdle, was clean and simple, and her bearing had a grace and dignity that Nature alone can give. Lastly, though from various indications he judged that she did not belong to his own station in life, she looked like a person of some refinement.

Such was Joan’s outward appearance. It was attractive enough, and yet it was not her beauty only that fascinated Henry Graves. There was something about this girl which was new to him; a mystery more beautiful than beauty shone upon her sweet face—such a mystery as he had noted once or twice in the masterpieces of ancient art, but never till that hour on human lips or eyes. In those days Joan might have posed as a model of Psyche before Cupid kissed her.

Now let us turn for a moment to Henry Archibald Graves, the man destined to be the hero of her life’s romance.

Like so many sailors, he was short, scarcely taller than Joan herself indeed, and stout in build. In complexion he was fair, though much bronzed by exposure to foreign climates; his blue eyes were keen and searching, as might be expected in one who had watched at sea by night for nearly twenty years; and he was clean shaved. His features were good though strongly marked, especially as regards the nose and chin; but he could not be called handsome, only a distinguished-looking man of gentlemanly bearing. At first sight the face might strike a stranger as hard, but more careful examination showed it to be rather that of a person who made it a practice to keep guard over his emotions. In repose it was a somewhat proud face, that of one accustomed to command and to be obeyed; but frank and open withal, particularly if its owner smiled, when it became decidedly pleasing.

For a few seconds they stood still in their mutual surprise, looking at each other, and the astonishment and admiration written in the stranger’s eyes were so evident, and yet so obviously involuntary, that Joan blushed more deeply than before.

Captain Graves felt the situation to be awkward. His first impulse was to take off his hat and go, his next and stronger one to stay and explain.

“I really beg your pardon,” he said, with a shyness which was almost comic; “I saw a lady standing on the tower I was riding by, and feared that she might be in difficulties.”

Joan turned her head away, being terribly conscious of the blush which would not fade. This stranger’s appearance pleased her greatly; moreover, she was flattered by his notice, and by the designation of “lady.” Hitherto her safety had not been a matter of much moment to any one, except, perhaps, to Samuel Rock.