“Helen, are you here?”

For a moment I thought she did not mean to answer, but knowing doubtless from experience the impossibility of deceiving him, she answered with a cheerful assent, dropping her hand as she did so from before my lips.

He heard the slight rustle which accompanied the movement, and a look I found it hard to comprehend flashed over his features, altering his expression so completely that he seemed another man.

“You have some one with you,” he declared, advancing another step but with none of the uncertainty which usually accompanies the movements of the blind. “Some dear friend,” he went on, with an almost sarcastic emphasis and a forced smile that had little of gaiety in it.

The agitated and distressed blush which answered him could have but one interpretation. He suspected that her hand had been clasped in mine, and she perceived his thought and knew that I perceived it also.

Drawing herself up, she moved towards him, saying in a sweet womanly tone that to me spoke volumes:

“It is no friend, Constant, not even an acquaintance. The person whom I now present to you is an agent from the police. He is here upon a trivial errand which will be soon finished, when I will join you in your office.”

I knew she was but taking a choice between two evils. That she would have saved her husband the knowledge of a detective’s presence in the house, if her self-respect would have allowed it, but neither she nor I anticipated the effect which this presentation produced upon him.

“A police officer,” he repeated, staring with his sightless eyes, as if, in his eagerness to see, he half hoped his lost sense would return. “He can have no trivial errand here; he has been sent by God Himself to——”

“Let me speak for you,” hastily interposed his wife, springing to his side and clasping his arm with a fervor that was equally expressive of appeal and command. Then turning to me, she explained: “Since Mr. Hasbrouck’s unaccountable death, my husband has been laboring under an hallucination which I have only to mention for you to recognize its perfect absurdity. He thinks—oh! do not look like that, Constant; you know it is an hallucination which must vanish the moment we drag it into broad daylight—that he—he, the best man in all the world, was himself the assailant of Mr. Hasbrouck.”