"If you had read my notes," said he, tapping his book approvingly, "you could not have made a statement more in accord with them." He looked at them for a moment, and then went on: "Dr. Morse had made up his mind finally to interview this woman. He had placed the letters in his hand-bag and was preparing for the trip when you," to Stella, "convinced him that he was making a mistake, and succeeded in obtaining his consent that Warwick make the journey with the letters instead. Am I right?"

"You are," replied Warwick. "I had known this woman," in explanation. "She heard of my intended marriage with Miss Corbin, claimed that she was my wife and forged certain letters to substantiate her claim. The entire matter was absurd, though Dr. Morse chose to regard it seriously. But at last he did consent to giving me the letters, permitting me to seek out the woman and force her to tell the truth."

"I see," said Ashton-Kirk. "It was while upon a landing of the back stairs that you were told that the letters were in the hand-bag in the library, and you at once went to get them, meaning to catch the next New York train. Miss Corbin went as far as the lower hall with you, then returned to her room. You entered the library. It was dark. A sound attracted you in the rear room. You went toward it, and as you gained the doorway you saw a woman with the bag in her hand step out of the low window to the lawn."

"You were there!" cried Warwick.

"No," smiled Ashton-Kirk. "Some of the things which I have told you were seen, or heard. Others I have gathered from signs. I have merely connected all of these by reasoning out what must have occurred to bring about the results that followed."

"I did see a woman step out upon the lawn," said Warwick, "and I followed her."

"Of course," said the secret agent. "You knew it was a woman who had brought the letters to Dr. Morse; and that you had not seen her is shown by the fact that you suspected that the woman with the bag was the same. You fancied that she had somehow learned of Dr. Morse's intention to turn the letters over to you; and in fear of what you might do and knowing that the letters were palpable forgeries, she had effected an entrance to the house and was trying to make off with them. If it occurred to you that she had been exceedingly quick to gain her information, and had suspiciously little trouble getting into the house, you might have suspected the collusion of Dr. Morse. As you had a deep-seated aversion to him, this thought would have been natural enough."

"As a matter of fact," said Warwick, slowly, "what you say is practically the truth. But," and there was a strong curiosity in his voice, "it is not possible that you have reasoned your way to this."

Ashton-Kirk smiled.

"Most things to which we are unaccustomed seem difficult," replied he. "This particular conclusion was arrived at very simply. It is based upon the fact that you did not give an alarm. Had you thought the woman was a housebreaker, you would not have contented yourself with taking the bag from her and watching her make away." And as young Warwick was staring, deeply struck by this explanation, the secret agent continued: "But, tell me, what made you reënter by the window after she had gone?"