“It is I, Mrs. Warburton. An interview with you seemed to me quite necessary, and I considered this the safest disguise, and Mr. Follingsbee’s company the surest protection.”

She bowed her head and looked inquiringly into his face.

“Mrs. Warburton, are you still desirous to discover the identity of the person who has been a spy upon you?” he asked gravely.

“I know—” she checked herself and turned a shade paler. “I mean I—” again she paused. What should she say to this man whose eyes seemed looking into her very soul? What did he know?

“Let me speak for you, madam,” he said, coming close to her side, his look and manner full of respect, his voice low and gentle. “You do not need my information; you have, yourself, discovered the man.”

Then, seeing the look of distress and indecision upon her face, he continued:

“On the night of our first interview, I pledged my word to respect any secret of yours which I might discover. At the same time I warned you that such discovery was more than possible. If, in saying what it becomes my duty to say, I touch upon a subject offensive to you, or upon which you are sensitive, pardon me. Under other circumstances I might have said: Mrs. Warburton, it is your brother-in-law who has constituted himself your shadow. But the events that followed that masquerade have made what would have been a simple discovery, a most complicated affair. Can we be sure of no interruption while you listen?”

She sank into a chair, with a weary sigh.

“There will be no interruption. Miss French and my brother-in-law are watching in the sick-room; the servants are all at their posts. Be seated, Mr. Stanhope.”

He drew a chair near that which she occupied, and plunged at once into his unpleasant narrative, talking fast, and in low, guarded tones.