"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.
"There's something in here like asbestos, Uncle Cassius," she began, and turning the urn upside down, she tried shaking it, using a little pressure on the circle to separate the two rims.

Slowly they gave, while the Dean hovered over her, cautioning and directing the operation, until two complete urns lay before them.