"Kind of you, madam,-very. It must have been an interesting moment to you."

"Very interesting! Too interesting! I own that I am not made entirely of steel, sir, and the shock he received at finding a dead man awaiting him, instead of a live one, was more or less communicated to me. Yet I stood my ground."

"Admirable! I could have done no better myself. And so this man who had an appointment with Mr. Adams was shocked, really shocked, at finding him lying there under a cross, dead?"

"Yes, there was no doubting that. Shocked, surprised, terrified, and something more. It is that something more which has proved my perplexity. I cannot make it out, not even in thinking it over. Was it the fascination which all horrible sights exert on the morbid, or was it a sudden realization of some danger he had escaped, or of some difficulty yet awaiting him? Hard to say, Mr. Gryce, hard to say; but you may take my word for it that there was more to him in this meeting than an unexpected stumbling upon a dead man where he expected to find a live one. Yet he made no sound after that first cry, and hardly any movement. He just stared at the figure on the floor; then at his face, which he seemed to devour, at first with curiosity, then with hate, then with terror, and lastly-how can I express myself?-with a sort of h.e.l.lish humor that in another moment might have broken into something like a laugh, if the bird, which I had failed to observe up to this moment, had not waked in its high cage, and, thrusting its beak between the bars, shrilled out in the most alarming of tones: 'Remember Evelyn!' That startled the old man even more than the sight on the floor had done. He turned round, and I saw his fist rise as if against some menacing intruder, but it quickly fell again as his eyes encountered the picture which hung before him, and with a cringe painful to see in one of his years, he sidled back till he reached the doorway. Here he paused a minute to give another look at the man outstretched at his feet, and I heard him say:

"'It is Amos's son, not Amos! Is it fatality, or did he plan this meeting, thinking--'

"But here he caught sight of my figure in the antechamber beyond, and resuming in an instant his former debonair manner, he bowed very low and opened his lips as if about to ask a question. But he evidently thought better of it, for he strode by me and made his way to the front door without a word. Being an intruder myself, I did not like to stop him. But I am sorry now for the consideration I showed him; for just before he stepped out, his emotion-the special character of which, I own to you, I find impossible to understand-culminated in a burst of raucous laughter which added the final horror to this amazing adventure. Then he went out, and in the last glimpse I had of him before the door shut he wore the same look of easy self-satisfaction with which he had entered this place of death some fifteen minutes before."

"Remarkable! Some secret history there! That man must be found. He can throw light upon Mr. Adams's past. 'Amos's son,' he called him? Who is Amos? Mr. Adams's name was Felix. Felix, the son of Amos. Perhaps this connection of names may lead to something. It is not a common one, and if given to the papers, may result in our receiving a clew to a mystery which seems impenetrable. Your stay in Mr. Adams's house was quite productive, ma'am. Did you prolong it after the departure of this old man?"

"No, sir, I had had my fill of the mysterious, and left immediately after him. Ashamed of the spirit of investigation which had led me to enter the house, I made a street boy the medium of my communication to the police, and would have been glad if I could have so escaped all responsibility in the matter. But the irony of fate follows me as it does others. A clew was left of my presence, which involves me in this affair, whether I will or no. Was the hand of Providence in this? Perhaps. The future will tell. And now, Mr. Gryce, since my budget is quite empty and the hour late, I will take my leave. If you hear from that bit of paper--"

"If I hear from it in the way you suggest I will let you know. It will be the least I can do for a lady who has done so much for me."

"Now you flatter me-proof positive that I have stayed a minute longer than was judicious. Good evening, Mr. Gryce. What? I have not stayed too long? You have something else to ask."

"Yes, and this time it is concerning a matter personal to yourself. May I inquire if you wore the same bonnet yesterday that you do to-day?"

"No, sir. I know you have a good reason for this question, and so will not express my surprise. Yesterday I was in reception costume, and my bonnet was a jet one--"

"With long strings tied under the chin?"

"No, sir, short strings; long strings are no longer the fashion."

"But you wore something which fell from your neck?"

"Yes, a boa-a feather boa. How came you to know it, sir? Did I leave my image in one of the mirrors?"

"Hardly. If so, I should not have expected it to speak. You merely wrote the fact on the study table top. Or so I have dared to think. You or the young lady-did she wear ribbons or streamers, too?"

"That I cannot say. Her face was all I saw, and the skirt of a dove-colored silk dress."

"Then you must settle the question for me in this way. If on the tips of that boa of yours you find the faintest evidence of its having been dipped in blood, I shall know that the streaks found on the top of the table I speak of were evidences of your presence there. But if your boa is clean, or was not long enough to touch that dying man as you leaned over him, then we have proof that the young lady with the dove-colored plumes fingered that table also, instead of falling at once into the condition in which you saw her carried out."

"I fear that it is my boa which will tell the tale: another proof of the fallibility of man, or, rather, woman. In secret search for clews I left behind me traces of my own presence. I really feel mortified, sir, and you have quite the advantage of me."

And with this show of humility, which may not have been entirely sincere, this estimable lady took her departure.

Did Mr. Gryce suffer from any qualms of conscience at having elicited so much and imparted so little? I doubt it. Mr. Gryce's conscience was quite seared in certain places.

CHAPTER VIII.

IN THE ROUND OF THE STAIRCASE.

The next morning Mr. Gryce received a small communication from Miss b.u.t.terworth at or near the very time she received one from him. Hers ran:

You were quite correct. So far as appears, I was the only person to lean over Mr. Adams's study table after his unfortunate death. I have had to clip the ends of my boa.

His was equally laconic:

My compliments, madam! Mr. Adams's jaws have been forced apart. A small piece of paper was found clinched between his teeth. This paper has been recovered, and will be read at the inquest. Perhaps a few favored persons may be granted the opportunity of reading it before then, notably yourself.

Of the two letters the latter naturally occasioned the greater excitement in the recipient. The complacency of Miss b.u.t.terworth was superb, and being the result of something that could not be communicated to those about her, occasioned in the household much speculation as to its cause.

At Police Headquarters more than one man was kept busy listening to the idle tales of a crowd of would-be informers. The results which had failed to follow the first day's publication of the crime came rapidly in during the second. There were innumerable persons of all ages and conditions who were ready to tell how they had seen this and that one issue from Mr. Adams's house on the afternoon of his death, but when asked to give a description of these persons, lost themselves in generalities as tedious as they were unprofitable. One garrulous old woman had observed a lady of genteel appearance open the door to an elderly gentleman in a great-coat; and a fashionably dressed young woman came in all breathless to relate how a young man with a very pale young lady on his arm ran against her as she was going by this house at the very hour Mr. Adams was said to have been murdered. She could not be sure of knowing the young man again, and could not say if the young lady was blonde or brunette, only that she was awfully pale and had a beautiful gray feather in her hat.

Others were ready with similar stories, which confirmed, without adding to, the facts already known, and night came on without much progress having been made toward the unravelling of this formidable mystery.

On the next day Mr. Adams's funeral took place. No relatives or intimate friends having come forward, his landlord attended to these rites and his banker acted the part of chief mourner. As his body was carried out of the house, a half-dozen detectives mingled with the crowd blocking the thoroughfare in front, but nothing came of their surveillance here or at the cemetery to which the remains were speedily carried. The problem which had been presented to the police had to be worked out from such material as had already come to hand; and, in forcible recognition of this fact, Mr. Gryce excused himself one evening at Headquarters and proceeded quite alone and on foot to the dark and apparently closed house in which the tragedy had occurred.

He entered with a key, and once inside, proceeded to light up the whole house. This done, he took a look at the study, saw that the cross had been replaced on the wall, the bird-cage rehung on its hook under the ceiling, and everything put in its wonted order, with the exception of the broken casings, which still yawned in a state of disrepair on either side of the doorway leading into the study. The steel plate had been shoved back into the place prepared for it by Mr. Adams, but the glimpses still to be seen of its blue surface through the hole made in the wall of the antechamber formed anything but an attractive feature in the scene, and Mr. Gryce, with something of the instinct and much of the deftness of a housewife, proceeded to pull up a couple of rugs from the parlor floor and string them over these openings. Then he consulted his watch, and finding that it was within an hour of nine o'clock, took up his stand behind the curtains of the parlor window. Soon, for the person expected was as prompt as himself, he saw a carriage stop and a lady alight, and he hastened to the front door to receive her. It was Miss b.u.t.terworth.

"Madam, your punctuality is equal to my own," said he. "Have you ordered your coachman to drive away?"

"Only as far as the corner," she returned, as she followed him down the hall. "There he will await the call of your whistle."

"Nothing could be better. Are you afraid to remain for a moment alone, while I watch from the window the arrival of the other persons we expect? At present there is no one in the house but ourselves."

"If I was subject to fear in a matter of this kind, I should not be here at all. Besides, the house is very cheerfully lighted. I see you have chosen a crimson light for illuminating the study."

"Because a crimson light was burning when Mr. Adams died."

"Remember Evelyn!" called out a voice.

"Oh, you have brought back the bird!" exclaimed Miss b.u.t.terworth. "That is not the cry with which it greeted me before. It was 'Eva! Lovely Eva!' Do you suppose Eva and Evelyn are the same?"

"Madam, we have so many riddles before us that we will let this one go for the present. I expect Mr. Adams's valet here in a moment."

"Sir, you relieve me of an immense weight. I was afraid that the privilege of being present at the test you propose to make was not to be accorded me."

"Miss b.u.t.terworth, you have earned a seat at this experiment. Bartow has been given a key, and will enter as of old in entire freedom to do as he wills. We have simply to watch his movements."

"In this room, sir? I do not think I shall like that. I had rather not meet this madman face to face."

"You will not be called upon to do so. We do not wish him to be startled by encountering any watchful eye. Irresponsible as he is, he must be allowed to move about without anything to distract his attention. Nothing must stand in the way of his following those impulses which may yield us a clew to his habits and the ways of this peculiar household. I propose to place you where the chances are least in favor of your being seen by him-in this parlor, madam, which we have every reason to believe was seldom opened during Mr. Adams's lifetime."

"You must put out the gas, then, or the unaccustomed light will attract his attention."

"I will not only put out the gas, but I will draw the portieres close, making this little hole for your eye and this one for mine. A common expedient, madam; but serviceable, madam, serviceable."

The snort which Miss b.u.t.terworth gave as she thus found herself drawn up in darkness before a curtain, in company with this plausible old man, but feebly conveyed her sensations, which were naturally complex and a little puzzling to herself. Had she been the possessor of a lively curiosity (but we know from her own lips that she was not), she might have found some enjoyment in the situation. But being where she was solely from a sense of duty, she probably blushed behind her screen at the position in which she found herself, in the cause of truth and justice; or would have done so if the opening of the front door at that moment had not told her that the critical moment had arrived and that the deaf-and-dumb valet had just been introduced into the house.

The faintest "Hush!" from Mr. Gryce warned her that her surmise was correct, and, bending her every energy to listen, she watched for the expected appearance of this man in the antechamber of Mr. Adams's former study.

He came even sooner than she was prepared to see him, and laying down his hat on a table near the doorway, advanced with a busy air toward the portiere he had doubtless been in the habit of lifting twenty times a day. But he barely touched it this time. Something seen, or unseen, prevented him from entering. Was it the memory of what he had last beheld there? Or had he noticed the rugs hanging in an unaccustomed way on either side of the damaged casings? Neither, apparently, for he simply turned away with a meek look, wholly mechanical, and taking up his hat again, left the antechamber and proceeded softly upstairs.