“Look down the lost and found column,” said he. “The third advertisement you will see there came from the district attorney’s office; the next one was inserted by Mr. Moore himself.”

I followed his pointing finer and read two descriptions of the filigree ball. The disproportion in the rewards offered was apparent. That promised by Uncle David was calculated to rouse any man’s cupidity and should have resulted in the bauble’s immediate return.

“He got ahead of the police that time,” I laughed. “When did these advertisements appear?”

“During the days you were absent from Washington.”

“And how sure are you that he did not get this jewel back?”

“Oh, we are sure. His continued anxiety and still active interest prove this, even if our surveillance had been less perfect.”

“And the police have been equally unsuccessful?”

“Equally.”

“After every effort?”

“Every.”