"Was that the time at which you went to your room?"

"Very near that time, as my interview with Mr. Mainwaring could not have exceeded ten minutes."

"At what time did you retire?"

"I sat up very late that night, for my mind was so occupied with some personal matters that I felt no inclination for sleep. I lighted a cigar and became so absorbed in my own thoughts that I was totally unaware of the lapse of time, until I was aroused by what I thought was a stealthy step outside. I then became conscious, for the first time, that I was very weary, both physically and mentally, and I also discovered that it was nearly three o'clock.

Astonished to find it so late, and exhausted by hours of protracted thought, I threw myself as I was upon a low couch, where I slept soundly until awakened in the morning."

Further questions failed to reveal any discrepancy in his statement, and he was dismissed.

The testimony of Ralph Mainwaring and of his son added nothing of interest or importance. Mr. Thornton testified to his incidental meeting with Hobson and to the reputation which the man had borne in London. When he had resumed his seat the coroner remarked,--

"As a matter of form, I will have to call upon the ladies, though it is not expected they will be able to furnish any information throwing light on this mysterious case."

It was, as he had said, little more than a ceremony and occupied but a few moments. Miss Carleton was the last one called upon. She stated that it was nearly eleven o'clock when she reached her room, but added that she did not retire immediately, as her cousin, Miss Thornton, had come in, and they had chatted together for more than an hour; that while so engaged, she heard Mr. Scott come up-stairs and enter his room, which adjoined hers, and lock the door for the night.

"At what hour was this?" inquired the coroner.

"It could not have been more than twenty minutes after twelve, as it was twenty-five minutes after twelve when my cousin went to her room, and this was about five minutes earlier."

"Can you state whether or not he left his room within the next half-hour?"

"I know that he did not," she replied. "I can testify that he remained in his room until after one o'clock. After my cousin left I discovered that the moon was just rising, and the view across the Hudson being extremely beautiful, as well as novel to me, I extinguished the light in my room and sat down by the open window to enjoy it. I heard Mr. Scott stepping quietly about his room for a few moments; then all was still. I sat for some time admiring the scenery, until I was aroused by hearing him pacing back and forth like a person in deep thought. I then found it was much later than I supposed,--nearly one o' clock,--and I immediately retired; but so long as I was awake I could hear him walking in his room."

As Miss Carleton finished her testimony it was evident that the tide of general opinion had turned somewhat in favor of the young secretary, but the latter quietly ignored the friendly glances cast in his direction.

It was generally supposed that all testimony in the case had now been heard. Considerable surprise was, therefore, manifested when the coroner nodded to Mr. Whitney, who, in turn, beckoned to some one in the hall. In response the butler appeared, ushering in a tall man, with cadaverous features and small, dark eyes, which peered restlessly about him.

"Richard Hobson," announced the coroner.

"At your service, sir," said the man, advancing with a cringing gait and fawning, apologetic smile.

"Mr. Hobson," said the coroner, after a few preliminaries, "I understand you were somewhat acquainted with the late Hugh Mainwaring."

"Well, yes, sir, somewhat," the other replied in soft, insinuating tones, but with peculiar emphasis on the word used by Dr. Westlake.

"Indeed, I might say, without exaggeration, that I was probably better acquainted with that estimable gentleman than was any one in this country."

"When did you last see Mr. Mainwaring?"

"I have not seen him to speak with him for fully twenty-three years."

"You have corresponded with, him, however, in that time?"

The witness showed no surprise.

"We exchanged a few letters while I was in England. I have neither heard from him nor written to him since coming to this country."

"When did you last see him, regardless of whether you spoke to him or not?"

"Probably within the last two or three weeks. I have occasionally met him on the street."

"Did Mr. Mainwaring see you at any of these times?"

"If he did, he did not recognize me."

"Did you see him when you called at Fair Oaks, Wednesday,--either morning or evening?"

"I did not."

"Mr. Hobson, will you describe the man who accompanied you when you called in the evening, Wednesday?"

"I could give you a general description. He was a large man, about my own height, but heavier, and rather good looking, on the whole.

But I am not good on details, such as complexion, color of hair, and so on; and then, you know, those little things are very easily changed."

"What was his name?"

Mr. Hobson smiled blandly. "The name by which I know him is John Carroll, but I have no idea as to his real name. He is a very eccentric character, many-sided as it were, and I never know which side will come uppermost."

"He is your clerk and in your employ, is he not?"

"Agent, I think, would be a preferable term. He is in my employ, he transacts certain business for me, but he does it in his own way, and comes and goes at his own discretion."

"Where is he at present?"

"I have no idea, sir."

"Did he leave for the city that night, or did he remain with you at the Riverside Hotel?"

"He was not with me at the hotel except for a few hours. I have not the slightest idea from whence he came to see me, when he went away, or in what direction he went. He was in haste to be excused as soon as our joint business was done, and I have not seen him since."

"Did he have on dark gla.s.ses that day?"

"Not when I saw him, but that was only in my room at the hotel, and for a few moments in this house; he would have no need for them at either place."

"Did he not accompany you from the hotel to Fair Oaks?"

"No, sir; we met here by prearrangement."

"When do you expect to see your agent again?"

"Whenever he has any business reports to make," Hobson replied, with an exasperating smile; "but I have no idea when that will be.

He has other commissions to execute; he is in the employ of others besides myself, and transacts some business on his own account also."

"I understand, Mr. Hobson, that you have repeatedly extorted money from Mr. Mainwaring by threatening to disclose facts in your possession regarding some questionable transaction."

"No, sir; my action could not be termed extortion or blackmail within the meaning of the law, though to any one conversant with Mr.

Mainwaring's private correspondence it may have had that appearance.

I was, however, merely making an effort to collect what was legally due me. Mr. Mainwaring, before leaving England, had voluntarily bound himself to pay me a certain sum upon the condition that I would not reveal certain transactions of considerably more than questionable character. I kept my part of the contract, but he failed in his. I wrote him, therefore, threatening, unless he fulfilled his share of the agreement, to inst.i.tute proceedings against him, which would naturally involve a disclosure of his secret.

He never paid me in full and the secret is still mine," he paused, then added slowly, "to keep or to sell, as will pay me best."