"Just what I wanted," exclaimed Norton, heartily delighted, and leading the way.

We walked across the campus with him to the Museum, still chatting. Norton was a tall, spare man, wiry, precisely the type one would pick to make an explorer in a tropical climate. His features were sharp, suggesting a clear and penetrating mind and a disposition to make the most of everything, no matter how slight. Indeed that had been his history, I knew. He had come to college a couple of years before Kennedy and myself, almost penniless, and had worked his way through by doing everything from waiting on table to tutoring. To-day he stood forth as a shining example of self-made intellectual man, as cultured as if he had sprung from a race of scholars, as practical as if he had taken to mills rather than museums.

We entered a handsome white-marble building in the shape of a rectangle, facing the University Library, a building, by the way, which Norton had persuaded several wealthy trustees and other donors to erect. Kennedy at once began examining the section devoted to Latin America, going over everything very carefully.

I looked about, too. There were treasures from Mexico and Peru, from every romantic bit of the wonderful countries south of us—blocks of porphyry with quaint grecques and hieroglyphic painting from Mitla, copper axes and pottery from Cuzco, sculptured stones and mosaics, jugs, cups, vases, little gods and great, sacrificial stones, a treasure house of Aztec and Inca lore—enough to keep one occupied for hours merely to look at.

Yet, I reflected, following Norton, in all this mass of material, the thief seemed to have selected one, apparently insignificant, dagger, the thing which Norton prized because, somehow, it bore on its blade something which he had not, as yet, been able to fathom.

Though Kennedy looked thoroughly and patiently, it seemed as though there was nothing there to tell any story of the robbery, and he turned his attention at last to other parts of the Museum. As he made his way about slowly, I noted that he was looking particularly into corners, behind cabinets, around angles. What he expected to find I could not even guess.

Further along and on the same side of the building we came to the section devoted to Egyptology. Kennedy paused. Standing there, upright against the wall, was a mummy case. To me, even now, the thing had a creepy look. Craig pushed aside the stone lid irreverently and gazed keenly into the uncanny depths of the stone sarcophagus. An instant later he was down on his hands and knees, carefully examining the interior by means of a pocket lens.

"I think I have made a start," he remarked, rising to his feet and facing us with an air of satisfaction.

We said nothing, and he pointed to some almost undiscernible marks in a thin layer of dust that had collected in the sarcophagus.

"If I'm not mistaken," he went on, "your thief got into the Museum during the daytime, and, when no one was looking, hid here. He must have stayed until the place was locked up at night. Then he could rob at his leisure, only taking care to confine his operations to the time between the rather infrequent rounds of the night watchman."