Correy was soon to show them. With a significant gesture toward the tapestry, he eagerly exclaimed:
"You see that? I've run by it several times since the accident sent me flying all over the building at everybody's call. But only just now, when I had a moment to myself, did I remember the door hid behind it. It's a door we no longer use, and I'd no reason for thinking it had anything to do with the killing of the young lady in the opposite gallery. But for all that I felt it would do no harm to give it a look, and running from the front, where I happened to be, I pulled out the tapestry and saw—but supposing I wait and let you see for yourselves. That will be better."
Leaving them where they stood face to face with the great hanging, he made a dive for the pedestal towering aloft at the farther end, and edging himself in behind it, drew out the tapestry from the wall, calling on them as he did so to come and look behind it. The Curator did not hesitate. He was there almost as soon as the young man himself.
But the detective was not so hasty. With a thousand things in mind, he stopped to peer along the gallery and down into the court before giving himself away to any prying eye. Satisfied that he might make the desired move with impunity, Mr. Gryce was about to turn in the desired direction when, struck by a new fact, he again stopped short.
He had noticed how the heavy tapestry shivered under Correy's clutch. Had this been observed by anyone besides himself? If by chance some person wandering about the court had been looking up—but no, the few people gathered there stood too far forward to see what was going on in this part of the gallery; and relieved from all further anxiety on this score, he joined Correy at the pedestal and at a word from him succeeded in squeezing himself around it into the small space they had left for him between the pushed-out hanging and the wall. An exclamation from the Curator, who had only waited for his coming to take his first look, added zest to his own scrutiny. It would take something more than the sight of a well-known door to give it such a tone of astonished discovery. What? Even he, with the accumulated surprises of years to give wings to his imagination, did not succeed in guessing. But when his eyes, once accustomed to the semi-darkness of the narrow space which Correy had thus opened out before him, saw not the door but what lay within its recess, he acknowledged to himself that he should have guessed—and that a dozen years before, he certainly would have done so.
It was a bow—not like the one hanging high in the Apache exhibit, but yet a bow strong of make and strung for use.
Here was a discovery as important as it was unexpected, eliminating Mrs. Taylor at once from the case and raising it into a mystery of the first order. By dint of long custom, Mr. Gryce succeeded in hiding his extreme satisfaction, but not the perplexity into which he was thrown by this complete change of base. The Curator appeared to be impressed in much the same way, and shook his head in a doubtful fashion when Correy asked him if he recognized the bow as belonging to the museum.
"I should have to see it nearer to answer that question with any sort of confidence," he demurred. "From such glimpses as I can get of it from here I should say that it has not been taken from any of our exhibits."
"I am sure it has not," muttered Correy. Then with a side glance at Mr. Gryce, he added: "Shall I slip in behind and get it?"
The detective, thus appealed to, hesitated a moment; then with an irrelevance perhaps natural to the occasion, he inquired where this door so conveniently hidden from the general view led to. It was the Curator who answered.
"To a twisting, breakneck staircase opening directly into my office. But this door has not been used in years. See! Here is the key to it on my own ring. There is no other. I lost the mate to it myself not long after my installation here."
The detective, working his way back around the pedestal, cast another glance up and down the gallery and over into the court. Still no spying eye, save that of the officer opposite.
"We will leave that bow where it is for the present," he decided, "a secret between us three." And motioning for Correy to let the tapestry fall, he stood watching it settle into place, till it hung quite straight again, with its one edge close to the wall and the other sweeping the floor. Had its weight been great enough to push the bow back again into its former place close against the door? Yes. No eye, however trained, would, from any bulge in the heavy tapestry, detect its presence there. He could leave the spot without fear; their secret would remain theirs until such time as they chose to disclose it.
As the three walked back the way they had come, the Curator glanced earnestly at the detective, who seemed to have fallen into a kind of anxious dream. Would it do to interrupt him with questions? Would he obtain a straight answer if he did? The old man moved heavily but the now fully alert Curator could not fail to see that it was with the heaviness of absorbed thought. Dare he disturb that thought? They had both reached the broad corridor separating the two galleries at the western end before he ventured to remark:
"This discovery alters matters, does it not? May I ask what you propose to do now? Anything in which we can help you?"
The detective may have heard him and he may not; at all events he made no reply though he continued to advance with a mechanical step until he stood again at the top of the marble steps leading down into the court. Here some of the uncertainty pervading his mind seemed to leave him, though he still looked very old and very troubled, or so the Curator thought, as pausing there, he allowed his glance to wander from the marble recesses below to the galleries on either side of him, and from these on to the seemingly empty spaces back of the high, carved railing guarding the great well. Would a younger man have served them better? It began to look so; then without warning and in a flash, as it were, the whole appearance of the octogenarian detective changed, and turning with a smile to the two men so anxiously watching him, he exclaimed with an air of quiet triumph:
"I have it. Follow and see how my plan works."
Amazed, for he looked and moved like another man,—a man in whom the almost extinguished spark of early genius had suddenly flared again into full blaze,—they hastily joined him in anticipation of they knew not what. But their enthusiasm received a check when at the moment of descent Mr. Gryce again turned back with the remark:
"I had forgotten. I have something to do first. If you will kindly see that the people down there are kept from growing too impatient, I will soon join you with Mrs. Taylor, who must not be left on this floor after we have gone below."
And with no further explanation of his purpose, he turned and proceeded without delay to Room B.
IV
A STRATEGIC MOVE
He found the unhappy woman quite recovered from her fainting spell, but still greatly depressed and not a little incoherent. He set himself to work to soothe her, for he had a request to make which called for an intelligent answer. Relieved from all suspicion of her having been an active agent in the deplorable deed he was here to investigate, he was lavish in his promises of speedy release, and seeing how much this steadied her, he turned to Mr. Roberts, who was still in the room, and then to the young lady who had been giving her a woman's care, and signified that their attentions were no longer required and that he would be glad to have them join the people below.
When the door had closed and Mr. Gryce found himself for the first time alone with Mrs. Taylor, he drew up a chair to her side and remarked in his old benevolent way:
"I feel guilty of cruelty, madam, in repeating a question you have already answered. But the conditions are such that I must, and do it now. When this young lady fell so unexpectedly at your feet, was your first look at her or at the opposite gallery?"
For an instant her eyes held his—something which did not often happen to him.
"At her," she vehemently declared. "I never thought of looking anywhere else. I saw her at my feet, and fell on my knees at her side. Who wouldn't have done so! Who would have seen anything but that arrow—that arrow! Oh, it was terrible! Do not make me recall it. I have sorrows enough–"
"Mrs. Taylor, you have my utmost sympathy. But you must realize how important it is for me to make sure that you saw nothing in the place from which that arrow