"Let us go to your office, Mr. Baker," he said. "I have a most important matter to discuss with you." Baker regarded the detective for a moment in surprise, then, seeing that Duvall was very much in earnest, he led the way to his private office. "I am not a newspaper writer, Mr. Baker," Duvall said, as soon as they were seated. "As a matter of fact, I am a detective, in the employ of Mrs. Morton, Ruth Morton's mother." "A detective?" he questioned. "Why has Miss Morton's mother employed a detective?" "Because someone is persecuting the girl, by sending her threatening letters, saying that her beauty is to be destroyed. This photograph"--he drew the hideous picture from his pocket--"is a sample of their work." Mr. Baker regarded the photograph for a moment in silence, then rose with a growl of rage and struck his clenched fist upon the desk. "This is outrageous--damnable!" he cried. "It cannot go on. No wonder the poor girl looked tired out. We will put the matter in the hands of the police. We will spend any amount of money----" "Wait a moment, Mr. Baker," Duvall interrupted, urging the angry man back into his chair. "Nothing is to be gained by giving any publicity to this matter. The scoundrels who are at the bottom of it will at once be warned, and then our chance of catching them will be small indeed. So far, not a soul knows that I am working on this case, outside of Mrs. Morton, and yourself. Even Miss Ruth does not know it. I have already unearthed some very surprising things connected with the case, although I have been occupied with it only since this morning. Within a few days, I have no doubt, I shall be able to place my hands upon the person or persons responsible for the trouble, but I must insist that I be given a free hand." "But," Mr. Baker expostulated, "she may be in immediate danger. At any moment something may happen that would ruin her beauty, and incidentally, ruin us as well. She is our star attraction." "I do not think the danger is immediate," Duvall replied gravely. "All the threats so far received set thirty days as the period within which the attack is to be made. Only three days have passed, so far. And in addition, Miss Morton is being very carefully guarded." "She certainly shall be while she is here at the studio," Mr. Baker exclaimed. "But, man, something ought to be done--at once." "The first thing to be done is to find out how that photograph got here--who brought it--and when. It was not delivered by mail. Look here." He handed the angry official the torn manilla envelope, which Ruth, in her excitement, had dropped upon the floor. Mr. Baker regarded it for a moment in angry silence, then pressed an electric button upon his desk. A young woman responded. "Send Jim here," he said. The girl nodded and withdrew. A few moments later a freckled-faced boy of twelve or fourteen came in. Duvall saw that it was the same boy who had brought in the photograph. "You sent for me, sir?" he asked.