“Again, that evening, I gave Lillian the opportunity to tell me of her visitor, but she made no mention of it.

“Eric, the demon of jealousy had his birth in my heart in that bitter hour—my wife had a secret from me—she was receiving clandestinely a gentleman whom I did not even know.

“I battled with the fever, heaven knows how terribly, but it conquered me, and although I despised myself for doing so despicable an act I set about watching Lillian.”

The large man buried his face in his hands and groaned aloud in his suffering.

CHAPTER III
THE TELL-TALE SCRAP OF PAPER

Darrell had by this time come to the conclusion that he was entering upon one of the oddest cases in his experience.

He had his sympathies aroused also, and while he generally worked for conviction, in this instance it would be otherwise, his desire being to prove the parties innocent.

Presently Leslie went on:

“I pretended to go to my office, but, instead, hovered in the neighborhood, sometimes in the drug-store on the corner.

“Thus I have discovered that regularly every morning at ten o’clock, Saturday omitted, this fine-looking foreign gentleman enters my house, and the door closes behind him.