"Say, what will you do about him? Shall you watch him?" Mr. Whitney called after the vanishing figure.

Merrick looked back over his shoulder with a peculiar smile. "I shall not lose track of him," he said, slowly; "he is too interesting."

CHAPTER XV

MUTUAL SURPRISES

The Mainwaring party was among the latest arrivals at the pier on the following day, owing to the dilatoriness of Mr. Thornton, Mrs. Mainwaring's efforts to the contrary notwithstanding. At the last moment he appeared, serenely and smilingly unconscious of that lady's frowns of displeasure, to the infinite amusement of his daughter, who whispered to Miss Carleton,—

"Poor papa! See how auntie glares at him, and he does not even know it."

But even Mrs. Mainwaring's facial muscles relaxed slightly at the sight of the beautiful ocean greyhound lying in the harbor, her flags waving and streamers fluttering in the breeze, awaiting only the captain's orders to start on her homeward course.

The decks were crowded with humanity, for the most part laughing and chatting gayly and singing bits of song, though here and there were sad, tear-stained faces, where long farewells, some of them perhaps the last farewells, were being spoken.

"Thank heaven, there'll be no tears shed on this occasion!" said Isabel Mainwaring; "unless," she added, with a glance of scorn towards Miss Carleton's escort, "Mr. Whitney should contribute a few. I detest such vulgar demonstrations in public!"