"A good idea, provided I take it with him," added the son, slyly.

"I see you are growing quite pale and are losing your appetite," continued the parent, with a grave face, which caused the youth to laugh outright at the pleasant irony.

"Yes," said the big boy, with the same gravity; "I suffer a great loss of appetite three or four times every day; in fact, I feel as though I couldn't eat another mouthful."

"I have observed that phenomenon, my son, but it never seems to attack you until the table has been well cleared of everything on it. Ah, my boy!" he added, tenderly, laying his hand on his head; "I am thankful that you are blessed with such fine health. Be assured there is nothing in this world that can take its place. With a conscience void of offense toward God and man, and a body that knows no ache nor pain, you can laugh at the so-called miseries of life; they will roll from you like water from a duck's back."

"But, father, have you thought of any way of giving Fred a vacation before he goes to work? You know he is as poor as he can be, and can't afford to do nothing and pay his expenses."

"The plan I have in mind," replied the father, leaning back in his chair and twirling his eyeglasses, "is this: next week the 'Nautilus,' one of the company's ships, will leave London for York Factory, which is a station deep in the heart of British America. She will touch at St. John, Greenland, and several other points on her way, and may stop several weeks or months at York Factory, according to circumstances. If it will suit your young friend to go with her, I will have him registered as one of our clerks, which will entitle him to a salary from the day the 'Nautilus' leaves the dock. The sea voyage will do him good, and when he returns, at the end of a year or less, he can settle down to hard work in our office in London. Of course, if Fred goes, you will have to stay at home."

Rob turned in dismay to his parent, but he observed a twitching at the corners of his mouth, and a sparkle of the fine blue eyes, which showed he was only teasing him.

"Ah, father, I understand you!" exclaimed the big boy, springing forward, throwing an arm about his neck and kissing him. "You wouldn't think of separating us."

"I suppose not. There! get along with you, and tell your friend to make ready to sail next week, his business being to look after you while away from home."

And that is how Rob Carrol and Fred Warburton came to be fellow-passengers on the ship "Nautilus" on the voyage to the far North.