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?"