He sat down at the desk and figured laboriously for nearly twenty minutes, working out the inscription in cypher, while Kit stared at him delightedly. After all, it was rather gratifying, she thought, to have somebody in the family who could take a little remark made thousands of years ago in old Egypt and make sense out of it to-day. She waited patiently until he had finished. His hands were trembling as he reached for the urn. "The circle," he repeated, "the circle. 'Ra in his circle shall guard Amenotaph.' The secret lies in the circle, Kit. Do you suppose it could mean the rim of the urn?" Kit knelt beside him, following the inscription on the outside of the urn carefully with her finger-tip, the same as the Dean had done, and stopping when she came to a small circle in black and red outline. "Do you suppose Ra lives here, Uncle Cassius?" she asked, poking at it thoughtfully. She peered on the inner side at the corresponding spot to the circle, and gave a little cry of excitement. There was the faintest sign of a circle here also, like one of the age cracks on Cousin Roxy's antique china. "See," she cried. "When you push on this side, the other gives a little bit." The Dean could not speak. He took the urn from her over to the window and carefully examined the inner circle through a microscope. "Yes," he said, fervently, "you are perfectly right, my dear. The circle moves. I think I shall have to take it to Washington on our way east. I would not take the responsibility of trying to remove it myself." "Oh, dear, it seems awful to have to wait so long," Kit exclaimed, regretfully. "You know it seemed to me as if you could just press it through with your thumb, like this." She had not intended pressing so hard, but merely to show him what she meant, and lo, as Cousin Roxy would have said, under the pressure of Kit's strong, young, capable thumb, the circle of Ra depressed and pushed slowly through, just exactly as Kit told the girls long afterwards, like when you plug a watermelon. The Dean looked on in utter amazement, as Kit lifted the urn and tested the inner section by shaking it. Then she peered into the circular hole, about the size of a quarter. The urn was fully two inches thick, and by inserting her finger into the space she found that it was made in two sections, with enough room between for a place of concealment.