"They are worth as much to you as your pledge of safety is to me," returned Robin. "Why should you expect to feel safe from me, while I am still in danger from you? That was not the compact. The hour that I set my foot on a foreign shore in safety, I will cut the last thread that binds me to the past, but those two papers will never be yours, Lord Beachcombe, until it is out of your power to injure me. I have given my word, and I will keep it. My title in exchange for my life; your legitimacy in exchange for my safety."

"I knew it—I felt it!" cried Beachcombe. "This fellow himself is the arch-impostor."

"Impostor!" said Robin, with a contemptuous laugh, as he stood up and pointed to the earl. "Nature has cast us in the same mold; God be praised that her work is only skin-deep. Double, you have the late earl's picture in that bag; pull it out, and let us see on which of his sons he printed off the best likeness of himself."

Mr. Double drew forth a roll of canvas, that bore evidence of having been hastily cut from the frame.

"My father's picture!" cried Beachcombe, recognizing it with amazement. "How came it in your possession?"

"It fell into my hands," said Robin dryly, "when I was lately in the North Country. I thought it might be useful, so I brought it away with me."

"You mean, I suppose, that you stole it from Beachcombe Castle," snapped the earl.

"How could I steal my own? Beachcombe Castle is entailed upon the eldest son, and I inherited it from my father, as the son just born to you will doubtless inherit it from you if nothing untoward happens to me. You ought to pray heartily for my welfare, my Lord, until I am safely landed in—America. Still, I am not dependent upon the picture of a dead man for proofs of identity. I can bring twenty living witnesses to prove that I am the son of Mrs. Vincent, whose marriage to Captain Gregory de Cliffe I can prove by documents and other valuable evidence."

"You will give up the two certificates if Lord Beachcombe pledges his word that you will be allowed to leave England unmolested, will you not?" inquired Mr. Perry insinuatingly.

"I will not," replied Robin firmly.