causes and motives in such a case as this which others, untrained, can not see?
"You have nothing more to tell me which might be of assistance?" he faced the girl again, but turned back at once to Caryl. "Let me tell you then, Mr. Caryl, that I am about to make a very thorough investigation of this for you. Meanwhile, I repeat: a definite, daring crime was planned first, I believe, against Howard Axton and Miss Waldron; but now—I am practically certain—it is aimed against Miss Waldron alone. But there cannot be in it the slightest danger of intentional personal hurt to her. So neither of you need be uneasy while I am taking time to obtain full proof—"
"But, Mr. Trant," the girl interrupted, "are you not going to tell me—you must tell me—what the criminal secret is that these letters have revealed to you?"
"You must wait, Miss Waldron," the psychologist answered kindly, with his hand on the doorknob, as though anxious for the interview to end. "What I could tell you now would only terrify you and leave you perplexed how to act while you were waiting to hear from me. No; leave the letters, if you will, and the page from the Illustrated News," he said suddenly, as the girl began gathering up her papers. "There is only one thing more. You said you expected an interruption here from Howard Axton, Mr. Caryl. Is there still a good chance of his coming here or—must I go to see him?"
"Miss Waldron telephoned to me, in his presence,
