Later he entered the mine and found that Tracy was not about. Nor could he discover anything of Pablo. The afternoon was far spent when the Mexican boy suddenly appeared before Frank.

"Hello, Pablo!" said Merry. "What's the word?"

"I followe heem," whispered Pablo excitedly. "I haf drop de letter where he find eet when he look for eet. Then he find time to go 'way. I followe. I see heem take letter to place in rocks long distance down vallee. He hide eet there. Pablo let heem go; stay watch letter. He haf hoss hid some piece off. He geet to hoss, geet on heem, ride off."

"That's all?"

"Dhat ees all."

"Well, you have done well, Pablo," said Merry. "I'll not forget it."

Pablo again grasped Frank's hand, which he kissed.

"You freen' to Pablo," he said. "You goode to heem. He not forget."

"Tell no one what you have seen and done."

"You look out for Beel."