“Do you see that woman in black in yonder box, talking with a swarthy-looking gentleman?”

“I do.”

“That is ‘Isabel Winthrop.’”

“The devil!”

“No; but perhaps one of his satanic highness’ amiable representatives. I have an interview arranged with her for to-morrow at 10; place the Kensington. I want you to follow her when she leaves the Garden and keep an eye on her until 10 o’clock to-morrow morning. If I do not hear from you before that hour I shall consider that she has made the engagement in good faith. I have a big day’s work to-morrow, and I believe I will go home and turn in.”

“All right, Jack, my boy. I will keep her ladyship in view if she leads me to China. So long.”


CHAPTER XXIII.
A REPRISAL OF TREACHERY.

“Don’t be absurd, Don Manada.”

“Absurd? Dios! I was never more thoroughly in earnest in my life.”