Meigs finally turned to us and demanded the cause of the professor's downcast air. Quinn revealed the king's plot and Meigs tore off into an outburst of recrimination, just as I expected he would do.

The professor bowed his head meekly to the tempest and even restrained me when I would have put a stop to the broker's intemperate language.

By and by we had our noon meal, and with the attendants who brought it came Olox, seating himself on the ground and watching us as we ate. The high chief was quite amiable, and I began asking him questions relative to our surroundings.

He indicated the king's private apartments in the palace, and pointed out his own residence, as well as the dwelling occupied by the late executioner-general, besides vouchsafing other information of interest.

"What is that small, square building under the wing of the palace?" I asked.

"That is the imperial exchequer," said he. "Within that building the king keeps the most priceless of all his treasures."

"And what is that?" inquired the professor.

"The Bolla," was the startling answer.

Quinn and I exchanged expressive glances. Here, through a chance remark by Olox, we were suddenly reminded of our duty to the king of Baigol. It was necessary that Olox should not see the startled looks which the professor and I were exchanging, and Mercurial eyes were preternaturally sharp.

"Bolla?" I allowed to come limpingly from the talk instrument. "What may that be?"