"Never fear, mistress. Lord Rosmore cannot remain here, and no one else will care a jot whether Mad Martin comes or goes. Come, there must be no more delay. You must be back in your room if they should chance to call for you when they return from the ruins. Indeed, you must contrive to let them know that you are there. You will wait for me, Mr. Crosby. Your hand once more, mistress." She stretched out her arm, and her hand was taken, but it was not Martin who took it. "Thank you for all you have done for me," whispered Crosby. "It is more than you have knowledge of; as yet, it is almost beyond my own comprehension. There will come happier times--quickly, I trust--then I may thank you better. Then, I would have you remember something more of Gilbert Crosby than that he came to you that day in Newgate." Then lips were pressed upon her hand, homage and reverence in the touch. "I shall think of you and pray for you," she answered. "I am waiting, mistress," said Martin. "I am here; your hand is difficult to find in the darkness." It was the other arm Barbara stretched out, and so for an instant she stood, both hands firmly held, linked to these two men. Martin led the way quickly, and certainly, as one who had made the journey often and knew every step of it. At first there was a faint echo of their footfalls, speaking of a wide space about them, but they were soon in a passage which became gradually narrower, then they began to ascend, for a little way by a sharp incline, and afterwards by a winding staircase. "Martin," Barbara said suddenly, "I am in real danger. Lord Rosmore wishes to marry me. To-night he gave me his word that you should go free, and I think I could persuade him to let Mr. Crosby escape, if I consent to be his wife. I have until to-morrow morning to give him an answer." "To-morrow morning he will have no prisoners to bargain with," Fairley answered. "Nevertheless, he will want an answer. If he does not get the answer he wants, I am likely to be accused of helping rebels." "Is that what he threatens? You are not a woman to be frightened by threats. You must meet deceit with deceit. Answer neither 'Yea' nor 'Nay' for a while. He will wait if you let him suppose your answer may be 'Yea.'" "My uncle is insistent," said Barbara. "Should you be pressed in such a fashion that there is no escape, mistress, say this to Sir John: 'It is a sacred trust; God requite you if you fail in it. When she is of age, give her that which is hers. She is free.' Tell him that these words were spoken to you out of the darkness, and then there followed a single word spoken low--'Beware!' Can you remember them? They must be exact. It is true you have heard them out of the darkness, and you will not say that Mad Martin spoke them." "And then, Martin?" "He will be afraid of you; but do not speak the words unless you are obliged. Let me hear you repeat them." Barbara said them carefully and correctly.