"If it could be so, it would be well. But how, Señor, do you propose to make this savage army vanish without a blow?"

"By means of the Chalchuih Tlatonac."

"I do not understand, mi amigo. Explain, if you will be so gracious. I am all attention."

Jack began to explain without further preamble.

"Observe, Excelencia," he said slowly, so that Don Miguel could have no difficulty in following his reasons, "It is now noon—this night, if I mistake not, the Indian army will come to Tlatonac——"

"Bueno!" interrupted Cocom, nodding his head like a mandarin, "I have heard this thing spoken with many tongues. Your messenger, Excelencia, will confirm what I say. The Indian army will march this night for Tlatonac. At dawn will you see them encamped round the walls."

"Proceed, Don Juan," said the President, gravely.

"As you can see, Señor Maraquando," pursued Jack, emphasising his remarks with his finger, "the savages will not arrive till night, so as it is now but noon, we will have time to make ready for their arrival."

"Dios! You said make no preparations!"

"Not hostile preparations! No, Señor; listen, I pray you. We have the Chalchuih Tlatonac, the properties of which are regarded with superstitious reverence by the Indians. What the opal commands they will do. When it glows red, they prepare for war. Let an azure ray shine, and they know that the god commands peace, and, at whatever cost, will lay down their arms."