"I must tell you something," resumed Robert. "You mustn't be vexed, Mary!"

"Why should I be vexed, my child?"

"And you will let me do it?"

"What do you mean?" said Mary, getting uneasy.

"Sister, I am going to be a sailor!"

"You are going to leave me!" cried the young girl, pressing her brother's hand.

"Yes, sister; I want to be a sailor, like my father and Captain John. Mary, dear Mary, Captain John has not lost all hope, he says. You have confidence in his devotion to us, and so have I. He is going to make a grand sailor out of me some day, he has promised me he will; and then we are going to look for our father together. Tell me you are willing, sister mine. What our father would have done for us it is our duty, mine, at least, to do for him. My life has one purpose to which it should be entirely consecrated-- that is to search, and never cease searching for my father, who would never have given us up. Ah, Mary, how good our father was!"

"And so noble, so generous!" added Mary. "Do you know, Robert, he was already a glory to our country, and that he would have been numbered among our great men if fate had not arrested his course."

"Yes, I know it," said Robert.

Mary put her arm around the boy, and hugged him fondly as he felt her tears fall on his forehead.

"Mary, Mary!" he cried, "it doesn't matter what our friends say, I still hope, and will always hope. A man like my father doesn't die till he has finished his work."

Mary Grant could not reply. Sobs choked her voice. A thousand feelings struggled in her breast at the news that fresh attempts were about to be made to recover Harry Grant, and that the devotion of the captain was so unbounded.

"And does Mr. John still hope?" she asked.

"Yes," replied Robert. "He is a brother that will never forsake us, never! I will be a sailor, you'll say yes, won't you, sister? And let me join him in looking for my father. I am sure you are willing."

"Yes, I am willing," said Mary. "But the separation!" she murmured.

"You will not be alone, Mary, I know that. My friend John told me so. Lady Helena will not let you leave her. You are a woman; you can and should accept her kindness. To refuse would be ungrateful, but a man, my father has said a hundred times, must make his own way."

"But what will become of our own dear home in Dundee, so full of memories?"

"We will keep it, little sister! All that is settled, and settled so well, by our friend John, and also by Lord Glenarvan. He is to keep you at Malcolm Castle as if you were his daughter. My Lord told my friend John so, and he told me. You will be at home there, and have someone to speak to about our father, while you are waiting till John and I bring him back to you some day. Ah! what a grand day that will be!" exclaimed Robert, his face glowing with enthusiasm.

"My boy, my brother," replied Mary, "how happy my father would be if he could hear you. How much you are like him, dear Robert, like our dear, dear father. When you grow up you'll be just himself."

"I hope I may," said Robert, blushing with filial and sacred pride.

"But how shall we requite Lord and Lady Glenarvan?" said Mary Grant.

"Oh, that will not be difficult," replied Robert, with boyish confidence. "We will love and revere them, and we will tell them so; and we will give them plenty of kisses, and some day, when we can get the chance, we will die for them."

"We'll live for them, on the contrary," replied the young girl, covering her brother's forehead with kisses. "They will like that better, and so shall I."

The two children then relapsed into silence, gazing out into the dark night, and giving way to long reveries, interrupted occasionally by a question or remark from one to the other. A long swell undulated the surface of the calm sea, and the screw turned up a luminous furrow in the darkness.

A strange and altogether supernatural incident now occurred. The brother and sister, by some of those magnetic communications which link souls mysteriously together, were the subjects at the same time and the same instant of the same hallucination.