"But you, my lady, are very far from being a clever woman," retorted Nick, with a gesture of impatience, signifying that he wished to leave with her at once.

"Nevertheless, I shall beat you at the finish, make no mistake about that," cried Cervera, scornfully. "Now, sir, I will put on my wrap, and go with you where you please."

With the last remark, she approached a peg in the open closet, as if to take down a dark shawl.

Instead, she suddenly turned quickly around and cried, with a taunting laugh:

"So long, Detective Carter! I really feel quite sorry to bid you—good-by!"

Nick started like a man electrified.

Cervera merely had pressed the peg on which the shawl hung, whereupon the whole back of the closet seemed to fall away instantly, disclosing a lighted passage beyond.

Nick caught a glimpse of it, and of the woman darting toward it, and he followed her like a shot from a gun.

As Cervera passed through the further opening and gained the lighted passage, she seized and threw a short lever just beyond the closet wall.

At the same moment Nick's weight fell upon the closet floor behind her.