That he did not follow up this move by an immediate searching of the rooms I have mentioned was owing to a wish he had to satisfy himself on another point first.
What was this point?
In passing along the rear on his way to this gallery, he had noticed the narrow staircase opening not a dozen feet away to his left. This undoubtedly led down to the side-entrance. If by any chance the user of the bow had fled to the rear instead of to the front, he would be found somewhere on this staircase, for he never could have got to the bottom before the cry of "Close the doors! Let no man out!" rendered this chance of immediate exit unavailable. So Mr. Gryce retraced his steps, and barely stopping to note the boy eying him with eager glances from the doorway of Room A, he approached the iron balustrade guarding the small staircase, and cautiously looked over.
A man was there! A man going down—no, coming up; and this man, as he soon saw from his face and uniform, was Correy the attendant.
"So that is where you were," he called down as he beckoned the man up.
"As near as I can remember. I was on my way in search of Mr. Jewett, for whom I had a message, and had got as far as you saw me, when I heard a cry of pain from somewhere in the gallery. This naturally quickened my steps and I was up and on this floor in a jiffy."
"Did you notice, as you stepped from the landing, whether the boy staring at us from the doorway over there was facing just as we see him now?"
"He was. I remember his attitude perfectly."
"Coming out of the door—not going in?"
"Sure. He was on the run. He had heard the cry too."
"And followed you into the gallery?"
"Preceded me. He was on the scene almost as soon as the man who stepped in from the adjoining section."
"I see. And this man?"
"Was well within my view from the minute I entered the first arch. He seemed more bewildered than frightened till he had passed the communicating arch and nearly stumbled over the body of the girl shot down almost at his elbow."
"And yourself?"
"I knew by his look that something dreadful had happened, and when I saw what it was, I didn't think of anything better to do than to order the doors shut."
"On your own initiative? Where was the Curator?"
"Not far, it seems. But he gets awfully absorbed in whatever he is doing, and there was no time to lose. Some one had shot that arrow, some one who might escape."
Mr. Gryce never allowed himself—or very rarely—to look at anyone full and square in the face; yet he always seemed to form an instant opinion of whomever he talked with. Perhaps he had already gauged this man and not unfavorably, for he showed not the slightest distrust as he remarked quite frankly:
"You must have had some suspicion of foul play even then, to act in so expeditious a manner."
"I don't know what my suspicions were. I simply followed my first impulse. I don't think it was a bad one. Do you, sir?"
"Far from it. But enough of that. Do you think"—here he drew Correy into the gallery out of earshot of the boy, who was watching them with all the curiosity of his fourteen years—"that this lad could have stolen from where we are standing now to the door where you first saw him, during the time you were making your rush up the stairs? Boys of his age are mighty quick, and–"
"I know it, sir; and I see what you mean. But even if he had been able to do this,—which I very much doubt,—no boy of his age could have strung that bow, or had he found it strung, have shot an arrow from it with force enough to kill. Only a hand accustomed to its use could handle a bow like that with any success."
"You know the bow, then? Saw it nearer than you said—possibly handled it?"
"No, sir; but I know its kind and have handled many of them."
"In this building?"
"Yes, sir, and in other museums where I have been. I have arranged and rearranged Indian exhibits for years."
"Then you think that the bow we saw behind the tapestry is an Indian one?"
"Without question."
The detective nodded and left him. One word with the boy, and he would feel free to go elsewhere.
It proved to be an amusing one. The boy, for all his enthusiasm as a scout, proved to be so hungry that he was actually doleful. More than that, he had a ticket for that afternoon's ball game in his pocket and feared that he would not be let out in time to see it. He therefore was quick with his answers, which certainly were ingenuous enough. He had been looking at the model of a ship (which could be seen through an open door), when he heard a woman cry out as if hurt, from somewhere down the gallery. He was running to see what it meant when a man came along who seemed in as great a hurry as himself. But he got there first—and so on and on, corroborating Correy's story in every particular. He was so honest (Mr. Gryce had been at great pains to trip him up in one of his statements and had openly failed) and yet so anxious for the detective to notice the ticket to the ball game which he held in one hand, that the old man took pity on him and calling an officer, ordered him to let the boy out—a concession to youth and innocence he was almost ready to regret when a woman of uncertain years and irate mien attacked him from the doorway he had just left, with the loud remark:
"If you let him go, you can let me go too. I was in this room at the same time he was and know no more about what happened over there than the dead. I have an appointment downtown of great importance. I shall miss it if you don't let me go at once."
"Is it of greater importance than the right which this dead girl's friends have to know by whose careless hands the arrow killing her was shot?" And without waiting for a reply, which was not readily forthcoming, Mr. Gryce handed her over to Correy with an injunction to see that she was given a comfortable seat below and proceeded to finish up this portion of the building by a search through the three great rooms extending along the rear.
He found them all empty and without clue of any kind, and satisfied that his real work lay in front, he returned thither with as much expedition as old age and rheumatism would admit. Why, in doing so, he went for the third time through the gallery instead of through rooms J, H and I, he did not stop to inquire, though afterward he asked that question of himself more than once. Had he taken this latter course, he might not have missed—
But that will come later. What we have to do now is to accompany him to the front of the building, where matters of importance undoubtedly await him. He had noted, in his previous passage to and fro, that the young man who had been nearest to the tragedy was in his place before the case of coins in Section I. This time he noted something more. The young man was in the selfsame spot, but during this brief interval of waiting, the passion he evidently cherished for numismatics had reasserted itself, and he now stood with his eyes bent as eagerly upon the display of coins over which he hung, as if no shaft of death had crossed the space without and no young body lay in piteous quiet beyond the separating partition.
It was an exhibition of one of the most curious traits of human nature, and Mr. Gryce would undoubtedly have expended a few cynical thoughts upon it if, upon entering the broad front corridor which he had hitherto avoided, he had not run upon Sweetwater pointing in a meaning way toward two huge cases which, stacked with medieval arms, occupied one of the corners.
"Odd couple over there," he whispered as the older detective paused to listen. "Been watching them for the last five minutes. They pretend to be looking at some old armor, but they are mighty uneasy and keep glancing up at the window overhead as if they would like to jump out."
Mr. Gryce indulged in one of his characteristic exclamations. This was the couple whose queer actions he had noticed on the staircase. "I'll have a talk with them presently. Anyone in the rooms opposite?"
"Yes, the Curator. He's in Room A, where there are a lot of engravings waiting to be hung. I guess he was pretty well up to his neck in business when that fellow Correy set up his shout. And have you noticed that he's a bit deaf, which is the reason, perhaps, why he was not sooner on the scene?"