Nearly an hour had passed in conversation when, with a bang, the great hall door came open, and Archy and Colonel Baskerville entered, just home from a long ride.

The stranger rose instantly, and, facing the door, held up a hand of warning. As soon as Archy's eyes became accustomed to the glow of the fire and candles, he uttered a cry of joy.

"My—" captain he was about to say, when he caught sight of Paul Jones's uplifted hand, and the word was checked in time. But, rushing forward, the two met and clasped each other rapturously, and in that warm embrace some whispered words were exchanged which caused them both to smile delightedly as they returned to the fire with their arms around each other like two school-boys, instead of being a captain and one of his junior officers.

Lord Bellingham and the two girls were amazed at the warmth of the meeting, and more puzzled than ever to make out the identity of their mysterious visitor. Not so Colonel Baskerville. He surmised in an instant that it was Paul Jones.

"Grandfather," cried Archy, "I cannot tell you the name of this gentleman whom I have the honor to call my friend, but I assure you that Bellingham never sheltered a more honorable and deserving man."

"I believe you," replied Lord Bellingham, with dignity, "and as I have already accepted him upon his own representations, I can do no more on yours. Perhaps your friend will remain the night with us?"

"Unfortunately, no," replied Paul Jones, "with sincere thanks for your lordship's goodness. I have been two weeks in England, and to-morrow morning, early, I must embark. I have ordered post-horses from the village for twelve o'clock to-night, which will get me to the coast before this time to-morrow."

"Uncle," then said Archy, turning to Colonel Baskerville, "will you not, on my assurance, shake hands with my friend?"

"Certainly," responded Colonel Baskerville, offering his hand, and saying, in a low voice, which Lord Bellingham did not catch: "With a surmise which amounts to a certainty as to who he is."