But the next instant the presence of the man was called to his attention by a terrific roar:
"Chester!"
Amazed at hearing his name, Bob gazed open-mouthed toward the house.
By this time, the man had come out onto the ground and the boy beheld a tall, spare-boned man, with weather-tanned face, a scrubby beard, and a mass of tousled hair.
The dog, however, paid no heed to the voice, rubbing against Bob and licking his hands.
Again came the bellow.
"Chester! Come here!"
Too alarmed by the imperiousness of the tone to wonder how the secret of his identity could be known by this man of the plains, Bob called:
"Yes, sir. Right away, sir."
But if the hearing of his name had caused Bob surprise, his response created more in the man.