THE MYSTERY OF THE YELLOW ROOM
And Rouletabille drew the eye-glasses, of which we know, from his pocket.
"When I saw these eye-glasses," he continued, "I was utterly nonplussed. I had never seen Larsan wear eye-glasses. What did they mean? Suddenly I exclaimed to myself: 'I wonder if he is long-sighted?' I had never seen Larsan write. He might, then, be long-sighted. They would certainly know at the Sûreté, and also know if the glasses were his. Such evidence would be damning. That explained Larsan's return. I know now that Larsan, or Ballmeyer, is long-sighted and that these glasses belonged to him.
"I now made one mistake. I was not satisfied with the evidence I had obtained. I wished to see the man's face. Had I refrained from this, the second terrible attack would not have occurred."
"But," asked the President, "why should Larsan go to Mademoiselle Stangerson's room, at all? Why should he twice attempt to murder her?"
"Because he loves her, Monsieur President."
"That is certainly a reason, but-"
"It is the only reason. He was madly in love, and because of that, and—other things, he was capable of committing any crime."
"Did Mademoiselle Stangerson know this?"
"Yes, Monsieur; but she was ignorant of the fact that the man who was pursuing her was Frédéric Larsan, otherwise, of course, he would not have been allowed to be at the château. I noticed, when he was in her room after the incident in the gallery, that he kept himself in the shadow, and that he kept his head bent down. He was look-
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