"Did Doctor Roversmire ask about the stick?" demanded Olive. "Yes, mum, several times; said it had been given to him by a friend of his, but of course I knew it hadn't." "And how did you connect the stick with the disappearance of Mr. Lancaster?" asked Teddy, who was more upset by the story than he cared to show. "Well, sir, master is always looking at the papers after the morning on which I found the stick. About a week ago, after reading the Telegraph, he asks for a Bradshaw and said he was going out of town; when he left the room, I looked at the Bradshaw and saw he had looked up the trains to Marlow; then I thought something in the paper might have put it into his head to go there. I found your advertisement, mum, and seeing you were at Marlow, knew I was on the right track; then the letters on the stick were those of Mr. Adrian Lancaster's name, who was being advertised for, so I wrote to you and that's all." "You are a very ingenious gentleman indeed," said Teddy grimly, when this recital ended, "quite an amateur detective. Well, Miss Maunders, what do you think of this story?" Olive had resumed her seat and was leaning her head on her hand, deep in thought. She started when Teddy addressed her and looked up quickly. "It seems to me that Adrian went to that house," she said quickly, "as the stick is certainly his and could only have been left there by him--there is no doubt he was Doctor Roversmire's visitor--why, I do not know, as he was quite unacquainted with the doctor and with the fact that I knew him. At all events, it is plain he was there on the night in question, but here all trace seems lost--did he stay there, or did he go away again?" "He stayed," said Dentham solemnly. "How do you know?" asked Rudall. "Did you see him in the house afterwards, or hear any noises to lead you to suspect that Mr. Lancaster might be concealed there?" Dentham shook his head. "No, I neither saw nor heard anything," he replied quickly, "but it was a wet night when he came, and after I found the walking-stick I searched for his footmarks. I traced them more or less clearly from the garden-door up to the window of the room in which I heard the voices. He must have left the same way if he left at all; but all the footmarks pointed towards the house, and none away from it, so I'm certain he did not go away." "You're quite a detective," said Teddy, with a smile, "and, certainly, your explanation is a very ingenious one, so let us assume, for the sake of argument, that Mr. Lancaster did not leave the house--so far so good. Now the next question is, did he leave the room?" "No," asserted Dentham again. "Why not?" asked Olive. "Because I was lying awake listening to the voices, and although I could not make out what they were saying, yet if either my master or Mr. Lancaster had left the room, I should easily have heard them doing so." Teddy Rudall looked puzzled.