Not content with this cheap experiment, the stranger then took Concho’s breath away by reddening some litmus paper with the nitrate, and then completely knocked over the simple Mexican by restoring its color by dipping it in the salt water.

“You shall try me this,” said Concho, offering his iron ore to the stranger;—­“you shall use the silver and the salt.”

“Not so fast my friend,” answered the stranger; “in the first place this ore must be melted, and then a chip taken and put in shape like this,—­and that is worth something, my Greaser cherub.  No, sir, a man don’t spend all his youth at Freiburg and Heidelburg to throw away his science gratuitously on the first Greaser he meets.”

“It will cost—­eh—­how much?” said the Mexican eagerly.

“Well, I should say it would take about a hundred dollars and expenses to—­to—­find silver in that ore.  But once you’ve got it there—­you’re all right for tons of it.”

“You shall have it,” said the now excited Mexican.  “You shall have it of us,—­the four!  You shall come to our camp and shall melt it,—­and show the silver, and—­enough!  Come!” and in his feverishness he clutched the hand of his companion as if to lead him forth at once.

“What are you going to do with your mule?” said the stranger.

“True, Holy Mother,—­what, indeed?”

“Look yer,” said the stranger, with a grim smile, “she won’t stray far, I’ll be bound.  I’ve an extra pack mule above here; you can ride on her, and lead me into camp, and to-morrow come back for your beast.”

Poor honest Concho’s heart sickened at the prospect of leaving behind the tired servant he had objurgated so strongly a moment before, but the love of gold was uppermost.  “I will come back to thee, little one, to-morrow, a rich man.  Meanwhile, wait thou here, patient one,—­Adios!—­thou smallest of mules,—­Adios!”

And, seizing the stranger’s hand, he clambered up the rocky ledge until they reached the summit.  Then the stranger turned and gave one sweep of his malevolent eye over the valley.

Wherefore, in after years, when their story was related, with the devotion of true Catholic pioneers, they named the mountain “La Canada de la Visitacion del Diablo,” “The Gulch of the Visitation of the Devil,” the same being now the boundary lines of one of the famous Mexican land grants.

CHAPTER II

WHO FOUND IT

Concho was so impatient to reach the camp and deliver his good news to his companions that more than once the stranger was obliged to command him to slacken his pace.  “Is it not enough, you infernal Greaser, that you lame your own mule, but you must try your hand on mine?  Or am I to put Jinny down among the expenses?” he added with a grin and a slight lifting of his baleful eyelid.